Solar System Essay for Students and Children

500+ words essay on solar system.

Our solar system consists of eight planets that revolve around the Sun, which is central to our solar system . These planets have broadly been classified into two categories that are inner planets and outer planets. Mercury, Venus, Earth, and Mars are called inner planets. The inner planets are closer to the Sun and they are smaller in size as compared to the outer planets. These are also referred to as the Terrestrial planets. And the other four Jupiter, Saturn, Uranus, and Neptune are termed as the outer planets. These four are massive in size and are often referred to as Giant planets.

solar system essay

The smallest planet in our solar system is Mercury, which is also closest to the Sun. The geological features of Mercury consist of lobed ridges and impact craters. Being closest to the Sun the Mercury’s temperature sores extremely high during the day time. Mercury can go as high as 450 degree Celsius but surprisingly the nights here are freezing cold. Mercury has a diameter of 4,878 km and Mercury does not have any natural satellite like Earth.

Venus is also said to be the hottest planet of our solar system. It has a toxic atmosphere that always traps heat. Venus is also the brightest planet and it is visible to the naked eye. Venus has a thick silicate layer around an iron core which is also similar to that of Earth. Astronomers have seen traces of internal geological activity on Venus planet. Venus has a diameter of 12,104 km and it is just like Mars. Venus also does not have any natural satellite like Earth.

Earth is the largest inner planet. It is covered two-third with water. Earth is the only planet in our solar system where life is possible. Earth’s atmosphere which is rich in nitrogen and oxygen makes it fit for the survival of various species of flora and fauna. However human activities are negatively impacting its atmosphere. Earth has a diameter of 12,760 km and Earth has one natural satellite that is the moon.

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Mars is the fourth planet from the Sun and it is often referred to as the Red Planet. This planet has a reddish appeal because of the iron oxide present on this planet. Mars planet is a cold planet and it has geological features similar to that of Earth. This is the only reason why it has captured the interest of astronomers like no other planet. This planet has traces of frozen ice caps and it has been found on the planet. Mars has a diameter of 6,787 km and it has two natural satellites.

It is the largest planet in our solar system. Jupiter has a strong magnetic field . Jupiter largely consists of helium and hydrogen. It has a Great Red Spot and cloud bands. The giant storm is believed to have raged here for hundreds of years. Jupiter has a diameter of 139,822 km and it has as many as 79 natural satellites which are much more than of Earth and Mars.

Saturn is the sixth planet from the Sun. It is also known for its ring system and these rings are made of tiny particles of ice and rock. Saturn’s atmosphere is quite like that of Jupiter because it is also largely composed of hydrogen and helium. Saturn has a diameter of 120,500 km and It has 62 natural satellites that are mainly composed of ice. As compare with Jupiter it has less satellite.

Uranus is the seventh planet from the Sun. It is the lightest of all the giant and outer planets. Presence of Methane in the atmosphere this Uranus planet has a blue tint. Uranus core is colder than the other giant planets and the planet orbits on its side. Uranus has a diameter of 51,120 km and it has 27 natural satellites.

Neptune is the last planet in our solar system. It is also the coldest of all the planets. Neptune is around the same size as the Uranus. And it is much more massive and dense. Neptune’s atmosphere is composed of helium, hydrogen, methane, and ammonia and it experiences extremely strong winds. It is the only planet in our solar system which is found by mathematical prediction. Neptune has a diameter of 49,530 km and it has 14 natural satellites which are more than of Earth and Mars.

Scientists and astronomers have been studying our solar system for centuries and then after they will findings are quite interesting. Various planets that form a part of our solar system have their own unique geological features and all are different from each other in several ways.

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Essay on Solar System

500+ words essay on solar system.

The Sun and all other planets and celestial bodies that revolve around it are together called a solar system. Our solar system consists of eight planets and an asteroid belt. These planets are termed inner and outer planets. Earth, Venus, Mercury and Mars are considered inner planets closer to the Sun and smaller, also known as terrestrial planets. The remaining four planets, Jupiter, Saturn, Uranus, and Neptune, are outer planets that are massive and termed giant planets.

This essay will discuss our solar system and give a detailed summary of the eight planets.

Planets are large celestial bodies that revolve around the Sun in fixed orbits. They don’t have their own lights and use the Sun’s light to reflect light. As stars, planets don’t twinkle because they are closer to us. The planets Mercury, Venus, Earth and Mars, remain in the inner solar system, and the outer solar system planets are Jupiter, Saturn, Uranus, and Neptune. Among all the planets, Earth is the only planet where life exists.

Satellites are objects that revolve around the Sun. Satellites can be categorised into two types – natural and man-made. For example, the Moon is a natural satellite that revolves around the Earth.

Man-made Satellite

Man-made satellites are artificial satellites sent to space to gather information about other planets. The first artificial satellite sent by India into space is Aryabhatta.

Asteroids are small, rocky objects that revolve around the Sun. Most asteroids are made of different rocks, but some have clays or metals, such as nickel and iron. Asteroids have irregular shapes and are not round-like planets.

Comets are irregularly shaped bodies composed of non-volatile grains and frozen gases. For example, Haley’s comet is a comet that occurs once every 76 years.

Dwarf planets

Dwarf planets are heavenly bodies that are too small to be considered a planet but too large to fall under smaller categories. Example: Pluto

Our Solar System

The nearest and the smallest planet in our solar system is Mercury. The planet is hidden under the Sunlight, which can only be seen before sunrise or sunset.

Venus is the closest and brightest planet in our solar system other than the Sun and the Moon. It is known as the morning and evening star because it appears in the eastern sky before Sunrise and in the western sky after sunset.

In our solar system, the Earth is the only planet that favours life. On this planet, life is possible because of conditions like water and atmosphere and the favourable distance from the Sun. The Earth’s rotation of axis is tilted, due to which we witness seasonal changes, and the Moon is the only natural satellite of planet Earth. From outer space, the colour of the Earth appears bluish-green as light from the landmass and water bodies gets reflected.

Mars is the fourth planet from the Sun. It is often called the “Red Planet” because the reddish iron oxide prevalent on its surface gives it a reddish appearance. Mars has two natural satellites.

Jupiter is the largest planet in our solar system. So big that it can accommodate 1300 piles of Earth. However, it is only 318 times heavier than Earth. Jupiter has at least 67 Moons. Jupiter has a big red spot, a gigantic one twice as wide as the Earth, that has been swirling for many years.

Saturn is the second-largest planet in our solar system. It is unique as it has thousands of beautiful rings. Saturn has numerous Moons.

Uranus and Neptune

Uranus rotates from west to east. Its axis has a huge tilt, making it look like it’s spinning on its side. Neptune is the eighth and farthest planet in our solar system. It has powerful winds, which are more potent than any other planet in the solar system.

Scientists and astronomers have been studying our solar system for centuries, and the findings are pretty interesting. Various planets that form a part of our solar system have their unique geological features, and all are different from each other in several ways. But, unfortunately, after years of exploration, the Universe has still more mysteries that are left unknown.

From our BYJU’S website, students can also access CBSE Essays related to different topics. It will help students to get good marks in their exams.

Frequently Asked Questions on Solar system Essay

Are there any other systems present in the universe.

Research has shown that there are several other systems existing in the universe other than our Solar system.

Does the solar system only consist of planets?

No, the solar system also consists of dwarf planets, asteroids, comets, etc.

Has the Solar system fully been discovered?

Although there are several types of research going on, there are still many undiscovered and unreachable regions of the Solar system.

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  • Solar System Essay

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Introduction to Essay Writing on Solar System on Vedantu

An essay is a piece of writing where an author expresses in detail all the information on a particular topic. An essay differs from other writing because it is more structured and it provides the author with their own perspective. In this particular essay, we shall know in detail about the solar system. Use this essay as a reference essay and try writing an essay on the solar system.

Let us begin our learning!

Essay on Solar System

The solar system consists of the sun, eight planets, and sixty-seven satellites of the planets, and a large number of small bodies (comets and asteroids). Earlier, Pluto was considered the smallest planet but now Pluto is not recognized anymore as a planet. The inner solar system comprises Sun, Mercury, Venus, Earth, and Mars. Jupiter, Saturn, Uranus, and Neptune form the outer solar system. These four planets are massive in size; hence they are called Giant Planets. Each planet revolves around the sun in its own orbits at its own speed.

Let us explore all the celestial bodies present in the Solar system.

The Sun was born 4.6 billions of years ago and it was formed from a giant rotating cloud of gasses and dust known as solar Nebula. The sun is the biggest star present at the center of the solar system. It is a self-luminous sphere of gasses. Its gravitational force holds the entire solar system. It has a radius of 695,508 kilometers and is 150 million kilometers away from Earth.

Mercury is the smallest and closest planet to the sun. It is also called Swift planet because it completes its revolution in 88 earth days. Its diameter is only one third of Earth but its density is about the same. The temperature of this planet is as high as 450 degrees Celsius in the mornings and nights are freezing cold. The surface of this planet is filled with craters, mountains and valleys.

Venus is the second closest planet to the sun and the hottest. Venus is the brightest planet and hence called the morning star. Venus is named after the Roman Goddess of love and beauty. Venus completes one revolution around the sun in 255 earth days. Venus spins clockwise on its orbits unlike other planets. Its surface is covered with clouds, craters, mountains and lava plains.

The third planet in the solar system is Earth. This is the only planet that sustains life. It is called the Blue planet because 70% of the earth's surface is covered with water. Earth takes 365 days to complete one revolution around the sun. This planet has only one natural satellite, the Moon.

The fourth planet from the sun in the solar system is Mars. It appears as a red-orange ball because of the presence of iron oxide and so it is called the Red planet. It is the second smallest planet after Mercury. Mars is named after the Roman God of war. Its surface is covered with volcanoes, craters all over.

Jupiter is the largest planet in the solar system. Jupiter is rich in hydrogen and helium gas and so it is also called a Gas Giant planet. Jupiter takes 4333 earth days to complete one revolution around the sun. This planet has 79 satellites. Jupiter has four rings.

Saturn is the least dense planet in the solar system. It is the second-largest planet. Saturn can float in water because it is made up of gasses like helium. The beautiful rings around the planet are made up of bits of ice, rock, and dust. Saturn revolves very slowly around the sun. This planet is named after the Roman God of agriculture and wealth.

Uranus is the coldest planet in the solar system. It takes 84 earth years to complete one revolution around the sun. Uranus is called an ice giant planet because its layer is made of ice and hydrogen, helium and methane. Uranus looks blue in color because of the presence of methane. Uranus has 27 satellites.

Neptune is the eighth and the farthest planet from the sun in the solar system. Neptune is named after the Roman God of the sea. Its atmosphere is made up of hydrogen, helium and methane and the presence of methane gives the color blue to the planet. It takes 165 earth years to complete one revolution. Neptune has 6 rings.

Comets and Asteroids:

Comets and Asteroids are the small celestial bodies that rotate around the sun. Asteroids are made up of rocks, metals and water. Comets are made up of frozen ammonia, methane and small amounts of rocky material.

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FAQs on Solar System Essay

1. How many planets are there in the solar system?

There are eight planets in the solar system.

2. Is the sun a planet or star?

The sun is a big star located at the centre of the solar system.

3. Which planet sustains life?

The Earth planet sustains life.

4. Which is the coldest planet in the solar system?

Uranus is the coldest planet in the solar system.

5. How to write well on any topic?

It is very important for the students to learn to write on their own. To write a good essay students should follow the following steps - 

Try to understand the topic you want to write about 

Read from multiple sources to get an idea of the topic 

Prepare a structure that is what all you want to cover in your writing 

Note down all the important points according to your structure 

Arrange the collected information in the pre-decided structure 

Remember to keep your readers engaged in your essay

Try to use idea and words which doesn't hurt anyone's emotions

Start writing and with time you would get better in the process

 You can also send us your essays or writing which will be evaluated by the faculty.

6. What should be the structure on which an essay can be written?

Like every writing, an essay also has three parts that are the introduction, body, and conclusion. Keep the introduction very interesting, get the attention of your reader by starting with a short story then gradually introduce your topic through that story. Secondly, make the audience aware of the keywords of the topic. In the body, write in detail about the topic like state the historical, economical, social, environmental, cultural factors of your topic. And then conclude your essay by summarizing the key message and the takeaways of the essay. Try to practice with this framework and in due course of time, you will be able to write an excellent essay. Also, try to read from some great essays.

7. What is the process of planet formation called?

The process by which planets are formed is called planetesimals. In the process, the clouds of gasses came together due to gravitational differences . The area of more clouds had higher gravitation and thus attracted more clouds towards them. The ball of clouds takes a round shape through the process of accretion.  

Read the article on Solar systems on the website of Vedantu.

8. What are terrestrial and jovian planets?

Terrestrial planets are planets closer to the Sun, it is also called inner planets. These planets are also called Earth-like planets as their features are similar to the Earth. It includes four planets which are Mercury, Venus, Earth, and Mars. Whereas jovian planets are the outer planets which are farther from the Sun. They are also called Jupiter-like planets as they share features similar to Jupiter. It includes Jupiter, Saturn, Uranus, and Neptune.

9. Can we draw diagrams in an essay? 

Some diagrammatic representation in an essay can be done. However, it is recommended that we should avoid drawing diagrams in an essay as it breaks the flow of the writing. Read some good essays to improve your writing style.

The solar system, explained

Our solar system is made up of the sun and all the amazing objects that travel around it.

The universe is filled with billions of star systems. Located inside galaxies, these cosmic arrangements are made up of at least one star and all the objects that travel around it, including planets, dwarf planets, moons, asteroids, comets, and meteoroids. The star system we’re most familiar with, of course, is our own.

Home sweet home

If you were to look at a giant picture of space, zoom in on the Milky Way galaxy , and then zoom in again on one of its outer spiral arms, you’d find the solar system. Astronomers believe it formed about 4.5 billion years ago, when a massive interstellar cloud of gas and dust collapsed on itself, giving rise to the star that anchors our solar system—that big ball of warmth known as the sun.

Along with the sun, our cosmic neighborhood includes the eight major planets. The closest to the sun is Mercury , followed by Venus , Earth, and Mars . These are known as terrestrial planets, because they’re solid and rocky. Beyond the orbit of Mars, you’ll find the main asteroid belt , a region of space rocks left over from the formation of the planets. Next come the much bigger gas giants Jupiter and Saturn , which is known for its large ring systems made of ice, rock, or both. Farther out are the ice giants Uranus and Neptune . Beyond that, a host of smaller icy worlds congregate in an enormous stretch of space called the Kuiper Belt. Perhaps the most famous resident there is Pluto . Once considered the ninth planet, Pluto is now officially classified as a dwarf planet , along with three other Kuiper Belt objects and Ceres in the asteroid belt.

Moons and other matter

More than 150 moons orbit worlds in our solar system. Known as natural satellites, they orbit planets, dwarf planets, asteroids, and other debris. Among the planets, moons are more common in the outer reaches of the solar system. Mercury and Venus are moon-free, Mars has two small moons, and Earth has just one. Meanwhile, Jupiter and Saturn have dozens, and Uranus and Neptune each have more than 10. Even though it’s relatively small, Pluto has five moons, one of which is so close to Pluto in size that some astronomers argue Pluto and this moon, Charon, are a binary system.

an illustration of the solar system.

Too small to be called planets, asteroids are rocky chunks that also orbit our sun along with the space rocks known as meteoroids. Tens of thousands of asteroids are gathered in the belt that lies between the orbits of Mars and Jupiter. Comets, on the other hand, live inside the Kuiper Belt and even farther out in our solar system in a distant region called the Oort cloud .

Atmospheric conditions

The solar system is enveloped by a huge bubble called the heliosphere . Made of charged particles generated by the sun, the heliosphere shields planets and other objects from high-speed interstellar particles known as cosmic rays. Within the heliosphere, some of the planets are wrapped in their own bubbles—called magnetospheres —that protect them from the most harmful forms of solar radiation. Earth has a very strong magnetosphere, while Mars and Venus have none at all.

Most of the major planets also have atmospheres . Earth’s is composed mainly of nitrogen and oxygen—key for sustaining life. The atmospheres on terrestrial Venus and Mars are mostly carbon dioxide, while the thick atmospheres of Jupiter, Saturn, Uranus, and Neptune are made primarily of hydrogen and helium. Mercury doesn’t have an atmosphere at all. Instead scientists refer to its extremely thin covering of oxygen, hydrogen, sodium, helium, and potassium as an exosphere.

Moons can have atmospheres, too, but Saturn’s largest moon, Titan, is the only one known to have a thick atmosphere, which is made mostly of nitrogen.

Life beyond?

For centuries astronomers believed that Earth was the center of the universe, with the sun and all the other stars revolving around it. But in the 16th century, German mathematician and astronomer Nicolaus Copernicus upended that theory by providing strong evidence that Earth and the other planets travel around the sun.

Today, astronomers are studying other stars in our galaxy that host planets, including some star systems like our own that have multiple planetary companions. Based on the thousands of known worlds spotted so far, scientists estimate that billions of planetary systems must exist in the Milky Way galaxy alone.

So does Earth have a twin somewhere in the universe? With ever-advancing telescopes, robots, and other tools, astronomers of the future are sure to find out.

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The planetary system we call home is located in an outer spiral arm of the Milky Way galaxy.

Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids.

Beyond our own solar system, there are more planets than stars in the night sky. So far, we have discovered thousands of planetary systems orbiting other stars in the Milky Way, with more planets being found. Most of the hundreds of billions of stars in our galaxy are thought to have planets of their own, and the Milky Way is but one of perhaps 100 billion galaxies in the universe.

While our planet is in some ways a mere speck in the vast cosmos, we have a lot of company out there. It seems that we live in a universe packed with planets – a web of countless stars accompanied by families of objects, perhaps some with life of their own.

There are many planetary systems like ours in the universe, with planets orbiting a host star. Our planetary system is called “the solar system” because we use the word “solar” to describe things related to our star, after the Latin word for Sun, "solis."

Size and Distance

Our solar system extends much farther than the eight planets that orbit the Sun. The solar system also includes the Kuiper Belt that lies past Neptune's orbit. This is a sparsely occupied ring of icy bodies, almost all smaller than the most popular Kuiper Belt Object – dwarf planet Pluto .

Beyond the fringes of the Kuiper Belt is the Oort Cloud . This giant spherical shell surrounds our solar system. It has never been directly observed, but its existence is predicted based on mathematical models and observations of comets that likely originate there.

The Oort Cloud is made of icy pieces of space debris - some bigger than mountains – orbiting our Sun as far as 1.6 light-years away. This shell of material is thick, extending from 5,000 astronomical units to 100,000 astronomical units. One astronomical unit (or AU) is the distance from the Sun to Earth, or about 93 million miles (150 million kilometers). The Oort Cloud is the boundary of the Sun's gravitational influence, where orbiting objects can turn around and return closer to our Sun.

The Sun's heliosphere doesn't extend quite as far. The heliosphere is the bubble created by the solar wind – a stream of electrically charged gas blowing outward from the Sun in all directions. The boundary where the solar wind is abruptly slowed by pressure from interstellar gases is called the termination shock. This edge occurs between 80-100 astronomical units.

Two NASA spacecraft launched in 1977 have crossed the termination shock: Voyager 1 in 2004 and Voyager 2 in 2007. Voyager 1 went interstellar in 2012 and Voyager 2 joined it in 2018. But it will be many thousands of years before the two Voyagers exit the Oort Cloud.​

There are more than 200 known moons in our solar system and several more awaiting confirmation of discovery. Of the eight planets, Mercury and Venus are the only ones with no moons. The giant planets Jupiter and Saturn lead our solar system’s moon counts. In some ways, the swarms of moons around these worlds resemble mini versions of our solar system. Pluto, smaller than our own moon, has five moons in its orbit, including the Charon, a moon so large it makes Pluto wobble. Even tiny asteroids can have moons. In 2017, scientists found asteroid 3122 Florence had two tiny moons .

Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula – a spinning, swirling disk of material.

At the center, gravity pulled more and more material in. Eventually, the pressure in the core was so great that hydrogen atoms began to combine and form helium, releasing a tremendous amount of energy. With that, our Sun was born, and it eventually amassed more than 99% of the available matter.

Matter farther out in the disk was also clumping together. These clumps smashed into one another, forming larger and larger objects. Some of them grew big enough for their gravity to shape them into spheres, becoming planets, dwarf planets, and large moons. In other cases, planets did not form: the asteroid belt is made of bits and pieces of the early solar system that could never quite come together into a planet. Other smaller leftover pieces became asteroids, comets, meteoroids, and small, irregular moons.

The order and arrangement of the planets and other bodies in our solar system is due to the way the solar system formed. Nearest to the Sun, only rocky material could withstand the heat when the solar system was young. For this reason, the first four planets – Mercury, Venus, Earth, and Mars – are terrestrial planets. They are all small with solid, rocky surfaces.

Meanwhile, materials we are used to seeing as ice, liquid, or gas settled in the outer regions of the young solar system. Gravity pulled these materials together, and that is where we find gas giants Jupiter and Saturn, and the ice giants Uranus and Neptune.

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Essay on Solar System

We see the sun every day shining in the sky and at night, we see the moon. Many other heavy bodies like satellites, meteoroids, and asteroids not visible to our naked eyes also make up the solar system. The sun and its planets together form the Solar System. The existence of the Solar System is about 4.6 billion years old.

100 Words Essay on The Solar System

200 words essay on the solar system, 500 words essay on the solar system.

Essay on Solar System

The solar system comprises all the planets that revolve around the sun. The solar system also contains moons, asteroids, comets, minor planets, and different types of gases and dust.

The planets are categorised into two categories: internal planets and outer planets. Mercury, Venus, Earth, Mars, Jupyter, Saturn, Uranus, and Neptune are called inner planets . Earlier, there were nine planets considered till 2006, but now, Pluto does not lie in the list of planets, it does not meet the standard set for the planets.

It is now termed a dwarf planet. In our solar system, the earth is the only planet where life exists. There are many solar systems that exist in the universe, it is more than 500. Our solar system includes the Kuiper belt that lies past Neptune’s orbit.

The Sun is a star that is made up of massive hot gas that gives us heat and light . The Sun is the focal point of the solar system, every substance in the solar system revolves around the Sun. There are eight planets in the solar system, Mercury is the closest planet to the Sun and the smallest planet in the solar system whereas Neptune is the farthest one and Jupiter is the biggest planet in the solar system.

Only Earth has a supportive environment for living creatures. The Earth rotates around its own axis and revolves around the Sun, similarly the moon orbits around the Earth. For complete rotation the earth takes one day and for completing one cycle around the sun it takes 365 days. It is what we call one year and due to gravity we all are stuck to the surface of the Earth.

A Comet is a large body in space made of rocks, ice, and frozen gas. The centre of a comet is called the nucleus. Asteroids are also large bodies in space made of rocks and minerals, they mostly orbit the sun between Mars and Jupiter in an area called the Asteroid Belt.

The solar system comprises eight planets, about 170 natural planetary satellites, and uncountable asteroids, meteorites, and comets. The solar system is situated within the Orion-Cygnus arm of the Milky way galaxy . Alpha Centauri made up of the stars Proxima Centauri, Alpha Centauri A, and Alpha Centauri B are the closest star systems to the solar system. The sun which is located at the centre of the solar system affects the motion of the body through its gravitational force. It contains more than 99% mass of the system.

Planets and Their Moons

Mercury | Mercury is the closest and smallest plate in the solar system, it orbits around the Sun and takes 87.97 earth days, it spins around slowly compared to Earth and it is slightly bigger than earth. It has a solid surface that is covered with craters and has a thin surface.

Venus | Venus is the second closest planet to the Sun. Venus is very similar to the earth in shape and densityVenus is the hottest planet in the solar system, it has a thick and toxic atmosphere covered with carbon dioxide and sulfuric acid in the form of yellowish clouds, and trapped heat.

Earth | Earth is the only planet that has a livable environment that sustains life and the ecosystem. It is the third closest and fifth largest planet in the solar system. On earth, life is possible for various reasons, but the most essential thing is the availability of water and the presence of oxygen. Earth is also known as the ‘Blue Planet’ because 71% of the earth’s surface is covered with seas, oceans, and large rivers of water

Mars | Mars is the fourth planet from the sun in the solar system. It appears as a red, orange, and radish ball because of the presence of iron oxide which is why Mars is also known as the ‘Red Planet’. Mars is positioned just next to the Earth. The evidence of water and oxygen raised hopes about the possibility of life on Mars.

Jupiter | Jupiter is the largest planet in the solar system and the first of the four gas giants. It is the fifth planet from the Sun. Jupiter also has a ring system like all the large gas planets, although these rings are not famous or as visible as Saturn’s ring.

Saturn | Saturn is the second largest and least dense planet in the solar system. Saturn can float in water because Saturn is made of gases, it's a gas giant with an average radius of about nine and a half times that of earth. Saturn has rings that are made of gas and dust.

Uranus | Uranus is the coldest planet in the solar system, it revolves around the sun and takes 84 earth years to complete one rotation around the earth. Uranus is called an ‘Ice Giant’ planet because it is covered with ice and Hydrogen gas.

Neptune | Neptune is the eighth planet and farthest planet from the sun in the solar system, its atmosphere is made of hydrogen, helium, and methane gas. Neptune is a dark, cold, and very windy planet in the solar system.

Explore Career Options (By Industry)

  • Construction
  • Entertainment
  • Manufacturing
  • Information Technology

Data Administrator

Database professionals use software to store and organise data such as financial information, and customer shipping records. Individuals who opt for a career as data administrators ensure that data is available for users and secured from unauthorised sales. DB administrators may work in various types of industries. It may involve computer systems design, service firms, insurance companies, banks and hospitals.

Bio Medical Engineer

The field of biomedical engineering opens up a universe of expert chances. An Individual in the biomedical engineering career path work in the field of engineering as well as medicine, in order to find out solutions to common problems of the two fields. The biomedical engineering job opportunities are to collaborate with doctors and researchers to develop medical systems, equipment, or devices that can solve clinical problems. Here we will be discussing jobs after biomedical engineering, how to get a job in biomedical engineering, biomedical engineering scope, and salary. 

Ethical Hacker

A career as ethical hacker involves various challenges and provides lucrative opportunities in the digital era where every giant business and startup owns its cyberspace on the world wide web. Individuals in the ethical hacker career path try to find the vulnerabilities in the cyber system to get its authority. If he or she succeeds in it then he or she gets its illegal authority. Individuals in the ethical hacker career path then steal information or delete the file that could affect the business, functioning, or services of the organization.

GIS officer work on various GIS software to conduct a study and gather spatial and non-spatial information. GIS experts update the GIS data and maintain it. The databases include aerial or satellite imagery, latitudinal and longitudinal coordinates, and manually digitized images of maps. In a career as GIS expert, one is responsible for creating online and mobile maps.

Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

Geothermal Engineer

Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.

Database Architect

If you are intrigued by the programming world and are interested in developing communications networks then a career as database architect may be a good option for you. Data architect roles and responsibilities include building design models for data communication networks. Wide Area Networks (WANs), local area networks (LANs), and intranets are included in the database networks. It is expected that database architects will have in-depth knowledge of a company's business to develop a network to fulfil the requirements of the organisation. Stay tuned as we look at the larger picture and give you more information on what is db architecture, why you should pursue database architecture, what to expect from such a degree and what your job opportunities will be after graduation. Here, we will be discussing how to become a data architect. Students can visit NIT Trichy , IIT Kharagpur , JMI New Delhi . 

Remote Sensing Technician

Individuals who opt for a career as a remote sensing technician possess unique personalities. Remote sensing analysts seem to be rational human beings, they are strong, independent, persistent, sincere, realistic and resourceful. Some of them are analytical as well, which means they are intelligent, introspective and inquisitive. 

Remote sensing scientists use remote sensing technology to support scientists in fields such as community planning, flight planning or the management of natural resources. Analysing data collected from aircraft, satellites or ground-based platforms using statistical analysis software, image analysis software or Geographic Information Systems (GIS) is a significant part of their work. Do you want to learn how to become remote sensing technician? There's no need to be concerned; we've devised a simple remote sensing technician career path for you. Scroll through the pages and read.

Budget Analyst

Budget analysis, in a nutshell, entails thoroughly analyzing the details of a financial budget. The budget analysis aims to better understand and manage revenue. Budget analysts assist in the achievement of financial targets, the preservation of profitability, and the pursuit of long-term growth for a business. Budget analysts generally have a bachelor's degree in accounting, finance, economics, or a closely related field. Knowledge of Financial Management is of prime importance in this career.

Underwriter

An underwriter is a person who assesses and evaluates the risk of insurance in his or her field like mortgage, loan, health policy, investment, and so on and so forth. The underwriter career path does involve risks as analysing the risks means finding out if there is a way for the insurance underwriter jobs to recover the money from its clients. If the risk turns out to be too much for the company then in the future it is an underwriter who will be held accountable for it. Therefore, one must carry out his or her job with a lot of attention and diligence.

Finance Executive

Product manager.

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

Operations Manager

Individuals in the operations manager jobs are responsible for ensuring the efficiency of each department to acquire its optimal goal. They plan the use of resources and distribution of materials. The operations manager's job description includes managing budgets, negotiating contracts, and performing administrative tasks.

Stock Analyst

Individuals who opt for a career as a stock analyst examine the company's investments makes decisions and keep track of financial securities. The nature of such investments will differ from one business to the next. Individuals in the stock analyst career use data mining to forecast a company's profits and revenues, advise clients on whether to buy or sell, participate in seminars, and discussing financial matters with executives and evaluate annual reports.

A Researcher is a professional who is responsible for collecting data and information by reviewing the literature and conducting experiments and surveys. He or she uses various methodological processes to provide accurate data and information that is utilised by academicians and other industry professionals. Here, we will discuss what is a researcher, the researcher's salary, types of researchers.

Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

Transportation Planner

A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.

Environmental Engineer

Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems. 

Safety Manager

A Safety Manager is a professional responsible for employee’s safety at work. He or she plans, implements and oversees the company’s employee safety. A Safety Manager ensures compliance and adherence to Occupational Health and Safety (OHS) guidelines.

Conservation Architect

A Conservation Architect is a professional responsible for conserving and restoring buildings or monuments having a historic value. He or she applies techniques to document and stabilise the object’s state without any further damage. A Conservation Architect restores the monuments and heritage buildings to bring them back to their original state.

Structural Engineer

A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software. 

Highway Engineer

Highway Engineer Job Description:  A Highway Engineer is a civil engineer who specialises in planning and building thousands of miles of roads that support connectivity and allow transportation across the country. He or she ensures that traffic management schemes are effectively planned concerning economic sustainability and successful implementation.

Field Surveyor

Are you searching for a Field Surveyor Job Description? A Field Surveyor is a professional responsible for conducting field surveys for various places or geographical conditions. He or she collects the required data and information as per the instructions given by senior officials. 

Orthotist and Prosthetist

Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.

Pathologist

A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.

Veterinary Doctor

Speech therapist, gynaecologist.

Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth. 

Audiologist

The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.

An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.

Are you searching for an ‘Anatomist job description’? An Anatomist is a research professional who applies the laws of biological science to determine the ability of bodies of various living organisms including animals and humans to regenerate the damaged or destroyed organs. If you want to know what does an anatomist do, then read the entire article, where we will answer all your questions.

For an individual who opts for a career as an actor, the primary responsibility is to completely speak to the character he or she is playing and to persuade the crowd that the character is genuine by connecting with them and bringing them into the story. This applies to significant roles and littler parts, as all roles join to make an effective creation. Here in this article, we will discuss how to become an actor in India, actor exams, actor salary in India, and actor jobs. 

Individuals who opt for a career as acrobats create and direct original routines for themselves, in addition to developing interpretations of existing routines. The work of circus acrobats can be seen in a variety of performance settings, including circus, reality shows, sports events like the Olympics, movies and commercials. Individuals who opt for a career as acrobats must be prepared to face rejections and intermittent periods of work. The creativity of acrobats may extend to other aspects of the performance. For example, acrobats in the circus may work with gym trainers, celebrities or collaborate with other professionals to enhance such performance elements as costume and or maybe at the teaching end of the career.

Video Game Designer

Career as a video game designer is filled with excitement as well as responsibilities. A video game designer is someone who is involved in the process of creating a game from day one. He or she is responsible for fulfilling duties like designing the character of the game, the several levels involved, plot, art and similar other elements. Individuals who opt for a career as a video game designer may also write the codes for the game using different programming languages.

Depending on the video game designer job description and experience they may also have to lead a team and do the early testing of the game in order to suggest changes and find loopholes.

Radio Jockey

Radio Jockey is an exciting, promising career and a great challenge for music lovers. If you are really interested in a career as radio jockey, then it is very important for an RJ to have an automatic, fun, and friendly personality. If you want to get a job done in this field, a strong command of the language and a good voice are always good things. Apart from this, in order to be a good radio jockey, you will also listen to good radio jockeys so that you can understand their style and later make your own by practicing.

A career as radio jockey has a lot to offer to deserving candidates. If you want to know more about a career as radio jockey, and how to become a radio jockey then continue reading the article.

Choreographer

The word “choreography" actually comes from Greek words that mean “dance writing." Individuals who opt for a career as a choreographer create and direct original dances, in addition to developing interpretations of existing dances. A Choreographer dances and utilises his or her creativity in other aspects of dance performance. For example, he or she may work with the music director to select music or collaborate with other famous choreographers to enhance such performance elements as lighting, costume and set design.

Social Media Manager

A career as social media manager involves implementing the company’s or brand’s marketing plan across all social media channels. Social media managers help in building or improving a brand’s or a company’s website traffic, build brand awareness, create and implement marketing and brand strategy. Social media managers are key to important social communication as well.

Photographer

Photography is considered both a science and an art, an artistic means of expression in which the camera replaces the pen. In a career as a photographer, an individual is hired to capture the moments of public and private events, such as press conferences or weddings, or may also work inside a studio, where people go to get their picture clicked. Photography is divided into many streams each generating numerous career opportunities in photography. With the boom in advertising, media, and the fashion industry, photography has emerged as a lucrative and thrilling career option for many Indian youths.

An individual who is pursuing a career as a producer is responsible for managing the business aspects of production. They are involved in each aspect of production from its inception to deception. Famous movie producers review the script, recommend changes and visualise the story. 

They are responsible for overseeing the finance involved in the project and distributing the film for broadcasting on various platforms. A career as a producer is quite fulfilling as well as exhaustive in terms of playing different roles in order for a production to be successful. Famous movie producers are responsible for hiring creative and technical personnel on contract basis.

Copy Writer

In a career as a copywriter, one has to consult with the client and understand the brief well. A career as a copywriter has a lot to offer to deserving candidates. Several new mediums of advertising are opening therefore making it a lucrative career choice. Students can pursue various copywriter courses such as Journalism , Advertising , Marketing Management . Here, we have discussed how to become a freelance copywriter, copywriter career path, how to become a copywriter in India, and copywriting career outlook. 

In a career as a vlogger, one generally works for himself or herself. However, once an individual has gained viewership there are several brands and companies that approach them for paid collaboration. It is one of those fields where an individual can earn well while following his or her passion. 

Ever since internet costs got reduced the viewership for these types of content has increased on a large scale. Therefore, a career as a vlogger has a lot to offer. If you want to know more about the Vlogger eligibility, roles and responsibilities then continue reading the article. 

For publishing books, newspapers, magazines and digital material, editorial and commercial strategies are set by publishers. Individuals in publishing career paths make choices about the markets their businesses will reach and the type of content that their audience will be served. Individuals in book publisher careers collaborate with editorial staff, designers, authors, and freelance contributors who develop and manage the creation of content.

Careers in journalism are filled with excitement as well as responsibilities. One cannot afford to miss out on the details. As it is the small details that provide insights into a story. Depending on those insights a journalist goes about writing a news article. A journalism career can be stressful at times but if you are someone who is passionate about it then it is the right choice for you. If you want to know more about the media field and journalist career then continue reading this article.

Individuals in the editor career path is an unsung hero of the news industry who polishes the language of the news stories provided by stringers, reporters, copywriters and content writers and also news agencies. Individuals who opt for a career as an editor make it more persuasive, concise and clear for readers. In this article, we will discuss the details of the editor's career path such as how to become an editor in India, editor salary in India and editor skills and qualities.

Individuals who opt for a career as a reporter may often be at work on national holidays and festivities. He or she pitches various story ideas and covers news stories in risky situations. Students can pursue a BMC (Bachelor of Mass Communication) , B.M.M. (Bachelor of Mass Media) , or  MAJMC (MA in Journalism and Mass Communication) to become a reporter. While we sit at home reporters travel to locations to collect information that carries a news value.  

Corporate Executive

Are you searching for a Corporate Executive job description? A Corporate Executive role comes with administrative duties. He or she provides support to the leadership of the organisation. A Corporate Executive fulfils the business purpose and ensures its financial stability. In this article, we are going to discuss how to become corporate executive.

Multimedia Specialist

A multimedia specialist is a media professional who creates, audio, videos, graphic image files, computer animations for multimedia applications. He or she is responsible for planning, producing, and maintaining websites and applications. 

Quality Controller

A quality controller plays a crucial role in an organisation. He or she is responsible for performing quality checks on manufactured products. He or she identifies the defects in a product and rejects the product. 

A quality controller records detailed information about products with defects and sends it to the supervisor or plant manager to take necessary actions to improve the production process.

Production Manager

A QA Lead is in charge of the QA Team. The role of QA Lead comes with the responsibility of assessing services and products in order to determine that he or she meets the quality standards. He or she develops, implements and manages test plans. 

Process Development Engineer

The Process Development Engineers design, implement, manufacture, mine, and other production systems using technical knowledge and expertise in the industry. They use computer modeling software to test technologies and machinery. An individual who is opting career as Process Development Engineer is responsible for developing cost-effective and efficient processes. They also monitor the production process and ensure it functions smoothly and efficiently.

AWS Solution Architect

An AWS Solution Architect is someone who specializes in developing and implementing cloud computing systems. He or she has a good understanding of the various aspects of cloud computing and can confidently deploy and manage their systems. He or she troubleshoots the issues and evaluates the risk from the third party. 

Azure Administrator

An Azure Administrator is a professional responsible for implementing, monitoring, and maintaining Azure Solutions. He or she manages cloud infrastructure service instances and various cloud servers as well as sets up public and private cloud systems. 

Computer Programmer

Careers in computer programming primarily refer to the systematic act of writing code and moreover include wider computer science areas. The word 'programmer' or 'coder' has entered into practice with the growing number of newly self-taught tech enthusiasts. Computer programming careers involve the use of designs created by software developers and engineers and transforming them into commands that can be implemented by computers. These commands result in regular usage of social media sites, word-processing applications and browsers.

Information Security Manager

Individuals in the information security manager career path involves in overseeing and controlling all aspects of computer security. The IT security manager job description includes planning and carrying out security measures to protect the business data and information from corruption, theft, unauthorised access, and deliberate attack 

ITSM Manager

Automation test engineer.

An Automation Test Engineer job involves executing automated test scripts. He or she identifies the project’s problems and troubleshoots them. The role involves documenting the defect using management tools. He or she works with the application team in order to resolve any issues arising during the testing process. 

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The Solar System 101

Space is sometimes called “the final frontier,” a phrase popularized by the iconic Star Trek television series. But it is an apt description of humanity’s scant understanding of the planets, stars, and other celestial bodies beyond Earth. Although, we understand the parts of our own solar system better than those outside of it, we still have a lot to learn. Watch these National Geographic 101 videos to learn more about our cosmic neighborhood.

Earth Science, Astronomy

Solar System

While astronomers have discovered thousands of other worlds orbiting distant stars, our best knowledge about planets, moons, and life comes from one place. The Solar System provides the only known example of a habitable planet, the only star we can observe close-up, and the only worlds we can visit with space probes. Solar System research is essential for understanding the origin and evolution of planets, along with the conditions necessary for life.

Center for Astrophysics | Harvard & Smithsonian scientists study the Solar System in many ways:

Participating in current and next-generation astronomical surveys mapping a large part of the sky. The multi-year Pan-STARRS survey has revealed many comets, asteroids, and other small Solar System bodies. Pan-STARRS Releases Largest Digital Sky Survey to the World

Studying the Sun using probes and instruments on rockets. Much of the Sun’s radiation is blocked by Earth’s atmosphere, requiring the use of stratospheric rockets such as the Hi-C mission or solar probes like the Solar Dynamics Observatory (SDO). These missions allow researchers to observe the high-energy radiation driven by the Sun’s magnetic field. Hi-C Launches to Study Sun's Corona

Observing comets in X-ray light to understand the effect the Sun has on them. Using NASA’s Chandra X-ray Observatory, astronomers study the reactions of molecules on a comet’s surface and in its tails respond when bombarded by sunlight and high-energy particles from the solar wind. Comets ISON & PanSTARRS: Comets in the ‘X’-Treme

Using the Chandra X-ray Observatory to study the icy worlds of the outer Solar System. Pluto in particular reacts relatively strongly to particles from the solar wind, to the point where its atmosphere shows up in X-ray telescopes. That behavior is similar to what we see from Mars’ atmosphere, even though Pluto is much farther from the Sun. X-ray Detection Sheds New Light on Pluto

Studying the chemical composition of Earth’s Moon and other satellites. Using data from robotic space probes, researchers have discovered water on bodies throughout the Solar System, including the Moon. While many of these places were once thought to be dry, astronomers now know there is far more water around the Solar System than just on Earth. Water on the Moon?

Looking for new and possibly unexpected worlds at the edges of the Solar System. Some astronomers think there might be a large “Planet Nine” far beyond the orbit of Pluto, based on unexplained observed motion of icy worlds in the Kuiper Belt. Planet Nine: A World That Shouldn't Exist

The Mysterious Worlds We Know Best

The heart of the Solar System is the Sun, a yellow star of moderate mass somewhere in the middle of its life cycle. That star is what drives most of the physical processes in the system, from heating Earth’s atmosphere to allow life, to gently pushing asteroids around and giving comets their tails . The rest of the Solar System is its eight major planets, five dwarf planets, hundreds of moons, and a large number of comets, asteroids, and other small bodies of rock and ice.

The extent of the Solar System is defined by the solar wind — particles driven by the Sun’s magnetic field — and gravitational influence. The heliopause is the boundary created when solar wind particles collide with interstellar gas as the Solar System moves through the galaxy. The gravitational edge is much farther and is defined by the Oort Cloud, a halo of icy debris left over from the formation of the Solar System. The Oort Cloud is the origin of many comets, and reaches nearly halfway to the nearest star.

As we’ve learned through centuries of study, the various planets, moons, and other objects in the Solar System are the products both of their common origin and of their unique history. Missions to Jupiter and Saturn have revealed that some moons might have habitable oceans beneath the ice. Comets and asteroids are the remaining planetesimals from the nebula that made the Solar System, which provide us with a look at the chemistry and physical processes that produced the planets.

Researchers use all that information to understand where we came from, and how the Solar System fits in with the thousands of known exoplanet systems. We can study the worlds of our Solar System in more detail than these alien planets, but no other star system so far resembles ours. The contrast between these systems and ours helps us understand the general rules governing planet formation and evolution.

Pluto in visible light and X-rays

Pluto's atmosphere is barely visible as seen in the optical light image captured by NASA's New Horizons spacecraft. However, in the inset X-ray picture from NASA's Chandra X-ray Observatory, the atmosphere shines out, revealing details about the environment of the outer Solar System.

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  • Solar, Stellar, and Planetary Sciences

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Solar System

The perseverance rover lands on mars on february 18, 2021 experience a simulation of the landing below:.

The dwarf planet Pluto in the darkness of space.

Hello, Pluto!

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All About Pluto

Pluto is now categorized as a dwarf planet.

What Is an Orbit?

An orbit is a regular, repeating path that one object in space takes around another one.

Play Bingo While Watching the Psyche Spacecraft Launch!

During the launch broadcast, you can mark off the words that you hear!

Make a Colorful Crayon Europa with Textures!

Create your own colorful crayon Europa with textures!

What Is a Comet?

Learn all about comets!

Color Your Universe: Find the Hidden Objects

Can you find all the NASA and space-themed hidden objects?

Why Do We Care About Water on Mars?

Where there are signs of water, there might also be signs of life!

What Is an Impact Crater?

Learn about impact craters!

How Long is a Year on Other Planets?

You probably know that a year is 365 days here on Earth. But did you know that on Mercury you’d have a birthday every 88 days? Read this article to find out how long it takes all the planets in our solar system to make a trip around the Sun.

Explore Mars: A Mars Rover Game

Drive around the Red Planet and gather information in this fun coding game!

All About the Moon

The biggest planet in our solar system

What Is the Weather Like on Other Planets?

Each of the planets in our solar system experiences its own unique weather.

Is There Ice on Other Planets?

Yes, there is ice beyond Earth! In fact, ice can be found on several planets and moons in our solar system.

How Do We Weigh Planets?

We can use a planet’s gravitational pull like a scale!

What Is a Solar Eclipse?

Learn more about what happens when the moon passes between Earth and the sun!

How Is the Sun Completely Blocked in an Eclipse?

It all has to do with the distance between Earth and the sun and Earth and the moon.

Asteroid or Meteor: What's the Difference?

Learn more about asteroids, meteors, meteoroids, meteorites, and comets!

What Is an Asteroid?

And what can we learn from these space rocks in our solar system?

Make a Planet Mask!

Make a mask and pretend to be your favorite planet in our solar system!

The Mars Rovers: Perseverance

This future mission will try to find out if life ever existed on the Red Planet!

The Mars Rovers: Curiosity

Mars had water long ago. But did it also have other conditions needed for life?

The Mars Rovers: Spirit and Opportunity

What did these twin rovers teach us about the history of water on Mars?

The Mars Rovers: Sojourner

Learn more about the first rover to land on Mars!

The Mars Rovers

How do rovers help us learn more about the Red Planet?

All About Neptune

The coldest planet in our solar system

All About Uranus

The planet that spins on its side

All About Saturn

The planet with beautiful rings

All About Jupiter

All About Mars

The red planet

All About Earth

The planet with living things

All About Venus

The hottest planet in our solar system

All About the Planets

Learn more about the planets in our solar system

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How Many Moons Does Each Planet Have?

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Europa: Jupiter's Ocean World

Learn more about this icy moon of Jupiter!

Why Does the Moon Have Craters?

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What Is the Kuiper Belt?

The icy bits past Neptune’s orbit

Where Does the Solar System End?

The Oort Cloud!

Why Are Planets Round?

And how round are they?

All About Mercury

The smallest planet in our solar system

Where Does Interstellar Space Begin?

Interstellar space begins where the sun’s magnetic field stops affecting its surroundings.

Jumping the Tallest Cliff in the Solar System

How far would we have to travel to get there?

What's It Like Inside Jupiter?

Jupiter's core is very hot and is under tons of pressure!

What Is a Planet?

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How Did the Solar System Form?

The story starts about 4.6 billion years ago, with a cloud of stellar dust.

Write your own zany adventure story!

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Play Solar System Switch-a-Roo!

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Illustration of a game controller that links to the Space Place Games menu.

Download SpacePlace iPhone Games!

Join the SpacePlace Community!

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Essay on Solar System for School Students

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  • Dec 23, 2023

Essay on Solar System

Essay on Solar System: Our solar system consists of one Sun and eight (formerly nine) planets. These eight planets are gravitationally bound by the Sun on their orbits. Apart from these eight planets, there are more than 210 known planetary satellites, asteroids, comets, and other icy bodies that are assembled in the Solar system. 

what is solar system essay

The first four planets are called terrestrial planets (Mercury, Venus, Earth, and Mars) the two gas planets (Jupiter and Saturn), and the other remaining ones are ice giants (Neptune and Uranus.)

Table of Contents

  • 2 Inner Planets (Terrestrial Planets):
  • 3 Outer Planets (Gas Giants)
  • 5 FAQs 

Learn about the smallest planet in our solar system

The Sun is the primary source of light and energy and is about 93 million miles from the Earth. It is the only star in our solar system and one of the more than 100 billion stars in the Milky Way. The surface of the Sun is about 5,500 degrees Celsius (10,000 degrees Fahrenheit) hot and the temperature reaches 15 million Celsius (27 million Fahrenheit). 

In terms of age and size, the Sun is 4.5 billion years old, composed of hydrogen and helium with a diameter of about 865,000 miles which is approximately 1.4 million kilometres. 

Inner Planets (Terrestrial Planets):

The planets that are made of rocks and metals are known as Inner Planets or Terrestrial Planets. These planets are comparatively small in size compared to the other outer planets. The description of these four planets is as follows:

1. Mercury—The Swift Planet

Mercury is the swiftest planet in our solar system which completes an orbit around the Sun in just 88 Earth days. Its proximity to the Sun contributes to extreme temperature variations, from scorching highs to freezing lows. 

With minimal atmosphere, Mercury lacks the protective blanket found on the Earth, exposing its surface to harsh solar radiation. 

2. Venus—The Evening Star or Morning Star

Venus, which is often referred to as the evening star or morning star, depends on its position relative to the Sun. When Venus is trailing the Sun, it is the evening star, visible after the sunset. Conversely, when ahead of the Sun, it is the morning star, appearing before sunrise. 

This dual identity arises from Venus´s orbit, positioning it closer to the Sun than Earth and causing varied visibility during different parts of the orbital journey. 

3. Earth—Blue Planet

The home planet to all living things is Earth. It is the only planet that is known for the existence of life. 

The surface of the Earth is made up of the crust, the core, and the mantle. It is a giant rocky planet with a circumference of about 40,075 kilometers; 71 percent or ¾ th of the Earth is covered with oceans and seas. A large area covered with water makes this planet a Blue Planet. 

4. Mars—Red Planet

The fourth planet of the solar system, Mars, is the most explored planet by the National Aeronautics and Space Administration (NASA.) The reason behind so many missions or research for Mars is to hope for the existence of extraterrestrial life on the planet. 

Apart from the possibility of life on Mars, the planet is also known for its presence of iron oxide that turns the planet reddish in appearance. 

Want to know more about our Planet Earth? Read Essay on Earth for more information.

Outer Planets (Gas Giants)

5. Jupiter—King of Planets

Jupiter is the first planet of our solar system in the category of outer planets, also known as gas giants. According to NASA, the U.S. government agency, the planet’s size is more than twice that of all other planets combined. 

Except for Jupiter’s size, the solar system’s first outer planet is made up of leftover gases from the formation of the Sun. 

6. Saturn—Ringed Planet

The sixth planet from the Sun is Saturn. It is also known as the ringed planet and the second-largest solar system planet. 

The three distinctive features that make Saturn different from other planets are its huge 145 moons, visibility from the Earth with the naked eye, and the seven main rings named D, C, B, A, F, G, and E from the outward side of the planet. 

7. Uranus—Ice Giant

The seventh planet from the Sun, Uranus, is one of the two ice giants in the list of the outer solar system. The planet is featured with the third largest diameter which makes the planet the third largest in the solar system. 

Other than massive size, Uranus is made up of three dense icy materials, methane, ammonia, and water – above all a small rocky core. 

8. Neptune—Blue Giant

The third largest and eighth planet of the solar system is Neptune. According to NASA, the farthest planet from the Sun is more than 17 times Earth’s size and nearly 58 times the dimensions of Earth’s volume. 

The cool blue planet, due to the absorption of infrared light by the planet’s Methane atmosphere, comprises a core with the capacity to pick up a lot of gas, making Neptune impossible for the existence of life. 

Also Read: Essay on Space Exploration

Our Solar system is incomplete without the Moon, a planetary large natural object that travels around the Earth. However, the Moon does not make its light but it reflects the light of the sunlight. 

The total number of moons in our Solar system is 290, out of which one Moon belongs to Earth, two to Mars, 27 to Uranus, 95 to Jupiter, 146 to Saturn, 5 to dwarf planet Pluto, and 14 to Neptune.

The solar system consists of the Sun, terrestrial planets, gas giants, Earth’s Moon, celestial bodies , and various other objects. The unique formation and dynamics continue to amaze scientists offering a glimpse into the vastness and beauty of our cosmic neighbourhood. 

Ans: The Nebular Theory, which states that the solar system is made up of interstellar clouds of dust and gas, is the best theory for the solar system.

Ans: Arybhatta, the mathematician and astronomer was the first to discover that the Earth revolves around the Sun. 

Ans: There is only one solar system in the universe. 

Ans: Our solar system consists of only stars and we know it as The Sun. 

Ans: The size of the solar system is almost 12 trillion miles, nearly 2 light years. 

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Deepika Joshi

Deepika Joshi is an experienced content writer with expertise in creating educational and informative content. She has a year of experience writing content for speeches, essays, NCERT, study abroad and EdTech SaaS. Her strengths lie in conducting thorough research and ananlysis to provide accurate and up-to-date information to readers. She enjoys staying updated on new skills and knowledge, particulary in education domain. In her free time, she loves to read articles, and blogs with related to her field to further expand her expertise. In personal life, she loves creative writing and aspire to connect with innovative people who have fresh ideas to offer.

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  • The Solar System and its planets

what is solar system essay

The Solar System is made up of the Sun and all of the smaller objects that move around it. Apart from the Sun, the largest members of the Solar System are the eight major planets. Nearest the Sun are four fairly small, rocky planets - Mercury, Venus, Earth and Mars.

Beyond Mars is the asteroid belt – a region populated by millions of rocky objects. These are left-overs from the formation of the planets, 4.5 billion years ago.

On the far side of the asteroid belt are the four gas giants - Jupiter, Saturn, Uranus and Neptune. These planets are much bigger than Earth, but very lightweight for their size. They are mostly made of hydrogen and helium.

Until recently, the furthest known planet was an icy world called Pluto. However, Pluto is dwarfed by Earth’s Moon and many astronomers think it is too small to be called a true planet.

An object named Eris, which is at least as big as Pluto, was discovered very far from the Sun in 2005. More than 1,000 icy worlds such as Eris have been discovered beyond Pluto in recent years. These are called Kuiper Belt Objects. In 2006, the International Astronomical Union decided that Pluto and Eris must be classed as “dwarf planets”.

Even further out are the comets of the Oort Cloud. These are so far away that they are invisible in even the largest telescopes. Every so often one of these comets is disturbed and heads towards the Sun. It then becomes visible in the night sky.

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Physics Wallah

Solar System Essay in English For School Students

Unlock the secrets of our solar system with our comprehensive Solar System essay on its formation, structure, and fascinating celestial bodies.

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November 1, 2023

Solar System Essay

Table of Contents

The solar system essay is a remarkable and awe-inspiring essay about encompassing the Sun and its eight major planets, their moons, countless asteroids, and a myriad of comets. At its center is the Sun – a blazing ball of nuclear fusion that sustains life on Earth and all other celestial bodies nearby. Orbiting this source of energy are diverse planets, each with unique characteristics and mysteries waiting to be unraveled. From Mercury’s scorching inferno to Neptune’s icy desolation, our system showcases a wide range of environments.

Our home planet, Earth, stands out as the only known place in the universe where life thrives – making it particularly intriguing to both scientists and philosophers alike. The natural satellites of these planets – such as Earth’s Moon, Ganymede, and Titan – provide valuable insights into their parent bodies’ history and geology. In addition to these planets and their moons, the solar system also hosts numerous asteroids and comets which have played significant roles in shaping Earth’s past through impact events. Studying this vast system not only expands our understanding of the cosmos but also offers the potential for answers about the origin of life and habitable worlds beyond our own. As we continue exploring this wonderous celestial arrangement, it

It is a large celestial body that revolves in a fixed orbit around the Sun. It doesn’t have its lights and uses sunlight to reflect light. Because planets are closer to us, they don’t twinkle as stars. Mercury, Venus, Earth, and Mars remain in the inner solar system, while Jupiter, Saturn, Uranus, and Neptune are in the outer solar system.

Our Solar System

There are eight planets are divided into two groups: inner planets and outer planets. Inner planets, including Mercury, Venus, Earth, and Mars, are more minor and closer to the Sun. The remaining four planets – Jupiter, Saturn, Uranus, and Neptune – are much larger and often called Giant planets.

Our Solar System

The most minor planet in our solar system is Mercury, which is also closest to the Sun. Mercury’s geological features include lobed ridges and impact craters. Mercury has a very high surface temperature due to its proximity to the Sun. It can reach temperatures of 450 degrees Celsius during the daytime, but at night, Mercury is cold. Mercury’s diameter is 4,878 kilometres, and it lacks a natural satellite.

As well as being the hottest planet in our solar system, Venus has a toxic atmosphere always traps heat. Venus is also the brightest planet and can be seen from the ground. Venus has the same iron core as Earth and has a thick silicate layer surrounding it. The Venus planet has a diameter of 12,104 km and is similar to Mars. Astronomers have seen evidence of internal geological activity. As with Mars, Venus does not have any natural satellites like Earth.

During the Earth’s lifetime, life is possible because it is covered two-thirds with water. The atmosphere on Earth, which is rich in nitrogen and oxygen, makes it an ideal place for various flora and fauna to survive. Earth has a diameter of 12,760 km and one natural satellite, the moon. 

Often referred to as the Red Planet, Mars is the fourth planet from the Sun. This planet is cold and has similar geological features to Earth.This is the only reason why it has captured the interest of astronomers like no other planet. An ice cap has been discovered on this planet. 

Jupiter has a strong magnetic field and is primarily made up of helium and hydrogen. It also has a Great Red Spot and cloud bands. This giant storm is believed to have raged here for hundreds of years. There are 79 natural satellites on Jupiter, which is much more than there are on Earth and Mars combined. Jupiter has a diameter of 139,822 km.

As the sixth planet from the Sun, Saturn is also known for its ring system, composed primarily of ice and rock particles. Saturn’s atmosphere is quite like Jupiter’s because it is mostly made up of hydrogen and helium. Saturn has a diameter of 120,500 km and has 62 natural satellites, most of which are made up of ice. Saturn has fewer satellites than Jupiter.

The seventh planet from the Sun, Uranus, is the lightest. Uranus has a blue tint due to methane in its atmosphere. Its core is colder than the other giant planets, and it orbits on its side.

It is the coldest, Neptune is the largest and densest. Neptune has an atmosphere made up of helium, hydrogen, methane, and ammonia and has extremely strong winds. It is the only planet in our solar system that was discovered mathematically. Neptune has a diameter of 49,530 km and has 14 natural satellites, which is more than Earth or Mars combined.

Solar System Essay FAQs

Solar system essays examine the sun, planets, moons, asteroids, and comets of our celestial neighbourhood. They explore their characteristics, orbits, and the vastness of space.

The solar system is a collection of celestial bodies centred around the sun. It includes eight major planets, their moons, asteroids, comets, and other objects. The sun's gravity holds these bodies in orbit, creating a complex and fascinating cosmic neighbourhood.

Our solar system consists of the sun, a star at the centre, and various celestial objects orbiting it. This includes eight planets, their moons, asteroids, and comets. Earth, our home, is one of these planets and supports life as we know it.

The solar system comprises:

The sun is a massive star at the centre. Eight significant planets, including Earth, orbiting the sun. Numerous moons orbiting these planets. Asteroids are rocky objects, some of which are found in the asteroid belt between Mars and Jupiter. Comets are icy bodies that travel in elliptical orbits around the sun, occasionally becoming visible from Earth.

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84 Solar System Essay Topic Ideas & Examples

🏆 best solar system topic ideas & essay examples, 👍 good research topics about solar system, 📌 most interesting solar system topics to write about, ❓ solar system research questions.

  • The Origins of the Solar System Another interesting topic that should be taken note of is the origin of the Earth itself for just as there have been numerous theories as to the origin of the solar system there have been […]
  • Solar System Colonization in Science Fiction vs. Reality Mars, also known as the Red Planet, the fourth in the distance from the Sun and the seventh-largest planet in the Solar System, is a favorite destination for colonization of science fiction authors, and the […] We will write a custom essay specifically for you by our professional experts 808 writers online Learn More
  • Copernican Model of the Solar System Copernicus was able to prove that the sun and not the earth was the center of the solar system but held unto the assumption of circular motion. Ptolemy’ model assumed that, the earth and not […]
  • Nebular Model of the Solar system According to nebular model of the formation of the universe, the formation of the solar system is inherent to the formation of the stars and planetary disks.
  • A Solar System Business Idea If the location of this business is favorable, the goal of achieving a turnover of $1 million is tenable. Some of the factors to be considered when coming up with the right marketing mix for […]
  • Solar System Formation The first 2-4 million years since the formation of the Solar System were the time of the first asteroid formation. The Jovian planets have formed much further away from the center of the System than […]
  • Mystery Solar System: Planets Analysis Of note, the gases that are most likely to be dominant in these planets that are closer to the sun are the heavy gasses.
  • Astronomy and Mystery Solar System The mesosphere layer (17 Km The greenhouse effect is a warming effect due to the presence of greenhouse gasses in the atmosphere that includes carbon dioxide.
  • Solar System Processes Research The disk was formed because of the pulling action of the gravitational force between the nebula particles that acted towards the center of the disk.
  • The Solar System Definition A ‘Shoot for the Moon’ is a revelation of the first maiden journey to space by the Americans in the 1960s.
  • The Solar System Formation and the Earth Evolution Limited opportunities are explored under the subject of cosmogony, the field which focused on the question: ‘Which processes contributed to the formation of Solar System, as well as how it evolved since its formation?’ Despite […]
  • The Solar System’s Nebular Model In response to this, the paper is aimed at explaining the nebular model of the solar system in details and the features of the solar system that the model can explain.
  • What Asteroids and Comets Tell About How the Solar System Formed? During the early 1500’s, the first astronomer Nicholas Copernicus in a controversial statement asserted that the sun was the center of the solar system, and not the earth.
  • Current Mission in the Solar System An additional objective of the mission was to increase the knowledge of the sun’s composition. An additional discovery of this mission was that the sun consists of burning gases.
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  • Extraterrestrial Life Outside the Solar System
  • Distance From Earth Any Threats to Earth Location in Our Solar System or in the Universe
  • Neptune, the Wonderful Planet in Our Solar System of the Milky Way
  • The Outer Solar System and Space Exploration
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  • Exoplanet Exploration: Planets Beyond our Solar System
  • Inside the Solar System: Comet C/2011 N3
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11 min read

Life in Our Solar System? Meet the Neighbors

solar system illustration

A tour of our solar system reveals a stunning diversity of worlds, from charbroiled Mercury and Venus to the frozen outer reaches of the Oort Cloud.

In between are a few tantalizing prospects for life beyond Earth ­– subterranean Mars, maybe, or the moons of giant planets with their hidden oceans – but so far, it’s just us.

“There’s nothing else in the solar system with lots of life on it,” said Mary Voytek, senior scientist for astrobiology at NASA Headquarters in Washington, D.C. “Otherwise, we would have likely detected it.”

Still, NASA continues searching the solar system for signs of life, past or present, and decades of investigation have begun to narrow down the possibilities. The broiling inner solar system seems unlikely (though the high-altitude clouds of Venus remain a possibility).

The same goes for the cloud-covered gas giants, with their crushing atmospheric pressures and seemingly bottomless depths – perhaps no solid surface at all, or if there is one, it’s no place for any living being.

The farthest provinces, with their dwarf planets and would-be comets locked in deep freeze, also seem a poor bet, though they can’t be ruled out. Same for dwarf planet Ceres in the asteroid belt, considered a possible “water world” either now or earlier in its history.

That brings us back to those tantalizing prospects. There’s Mars, now a cold, nearly airless desert, but once temperate and flowing with water.

And much hope remains out among the gas giants – not the big planets themselves, but their long list of moons. Jupiter’s Europa and Saturn’s Enceladus, despite their frozen, forbidding surfaces, are hiding vast oceans beneath the ice – among several moons with subsurface oceans.

Let’s begin the tour with our hottest planet.

Venus, a tantalizing target

Often called our “sister planet,” Venus, of similar size and structure to Earth, has critical differences: a surface hot enough to melt lead, a crushingly heavy atmosphere and an extremely volcanic geology. Venus began its existence much as Earth did, perhaps even with globe-spanning oceans. But the two planets took very different paths. A runaway greenhouse effect likely boiled off Venus’s oceans and turned the planet into a perpetual inferno – the hottest world in the solar system.

Yet Venus also exerts an irresistible pull for astrobiologists – scientists who study how life begins, its necessary ingredients and the planetary environments that it might require. Venus is a kind of negative to Earth’s positive; by studying what went so very wrong, we might learn what it takes to get life right.

“Venus gives us an example of an alternative evolution for planets,” said Vikki Meadows, an astrobiologist who heads the Virtual Planetary Laboratory in NASA’s Nexus for Exoplanet System Science.

The planet’s divergent path includes “loss of habitability, loss of water on the surface, sulfuric acid clouds, and a dense carbon-dioxide atmosphere,” Meadows said. “It’s also a warning – how terrestrial planets die.”

Venus has deep implications as well for the study of exoplanets – planets that orbit other stars. Many close to their stars are probably Venus-like worlds; Venus is a nearby laboratory showing how such planets might evolve.

Persistent, dark streaks in Venus’s clouds, where temperatures and pressure are more congenial, also prompt intriguing speculation: Could they be wind-whipped bands of microbial lifeforms? A recent study even suggested the presence of one potential life sign, a gas called phosphine, in the Venusian atmosphere. Bacteria on Earth produce it. For now, this possibility remains in the “unlikely but possible” column, scientists say; only further investigation will offer a definite answer.

Earth as an analog in search for life

As we cruise past our sole example of a life-bearing world, we might take a page from an earlier era of planetary exploration, courtesy of Carl Sagan. The astronomer and prize-winning author also was a key member of science teams for a variety of NASA’s solar system exploration missions, including Galileo.

In 1990, as the space probe zipped past Earth for a gravitational kick that would hurtle it toward the outer solar system, it turned its instruments on the home planet. Sagan’s question: Could Galileo detect signs of life on Earth?

And it did. Oxygen. Methane. A spike in the infrared part of the light spectrum, called a “red edge,” the telltale sign of reflective vegetation on the surface. Galileo even detected what today might be called a “technosignature” – a sign of intelligent life. In this case, powerful radio waves that were unlikely to come from natural sources.

“It’s vital to think about what our own planet would look like to an alien,” said Giada Arney, an astronomer and astrobiologist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “It’s important to think about what signs of life they could actually see from space.”

Arney, who says much of her work involves “thinking about Earth as an exoplanet,” focuses on haze-shrouded worlds. As we search for signs of life around other stars, she reminds us that our own planet would have looked very different at various epochs in the deep past.

The Earth of billions of years ago, in the Archean era, might not even have been Sagan’s “pale blue dot.” Before the atmosphere became oxygen rich, Earth might occasionally have been a “pale orange dot,” Arney says, its orange haze created by complex atmospheric chemistry involving methane generated by microbes. A similar haze is found today in the atmosphere of Saturn’s moon, Titan, though in this case, not generated by life.

To find an analog of our own planet out among the stars, we must consider “not just modern Earth, but Earth through time,” she said. “The kinds of planets that could be (considered) Earth-like may be very different from modern Earth.”

Mars: Potentially habitable at some point

In a sense, the Red Planet tells a tale echoing that of Venus, but from the other side of the temperature scale. Investigations by orbiters, and rovers on the surface, confirm that Mars was once wet, with rivers, lakes and perhaps even oceans, and like Earth potentially habitable.

“The most exciting thing about Mars is that, at some point in time, 3.5 billion years ago, it’s clear the climate on Mars was more similar to Earth’s and had liquid water on its surface,” Voytek said.

Then solar wind and radiation stripped most of its atmosphere away. Its minimally active core ceased to generate a protective magnetic field. Its surface became forbiddingly cold and dry even as it was bombarded with radiation.

Habitable Worlds? 2

Is anything alive on Mars, perhaps beneath the surface, or in the frozen polar caps? Or might Earth’s future robotic explorers – one day maybe human explorers – stumble upon evidence of extinct forms from early Mars?

Two strikes against Mars, Voytek said, are its lack of available water and the absence of plate tectonics – the process on Earth that moves continents over eons and recycles buried nutrients back up to the surface.

“A lot of people think the planet may be dead – no life now because it doesn’t have that recycling going on,” she said.

Strikes in its favor might include detection of methane in the Martian atmosphere. On Earth, methane, otherwise short-lived in the atmosphere, is replenished by the metabolic action of life forms. Methane also can be produced through reactions of water and rock, but microbial life beneath the surface is another possibility.

“While surface conditions are not suitable, we may find evidence of past life, or perhaps some life that’s still hanging on,” said Morgan Cable, a researcher with the Astrobiology and Ocean Worlds Group at NASA’s Jet Propulsion Laboratory.

A newly launched Mars rover, Perseverance, is designed to collect samples of Martian soil – called regolith ­– that would be returned to Earth later for analysis. And the European Space Agency’s Rosalind Franklin lander, expected to launch in 2022, will drill beneath the Mars surface to search for signs of life.

Ocean worlds: The moons of gas giants

Our solar system’s majestic giants – Jupiter, Saturn, Uranus, Neptune – and their trains of moons might almost be considered solar systems in their own right. Some of these moons could well be habitable worlds; one of them, Titan, has a thick atmosphere, rain, rivers and lakes, though composed of methane and ethane instead of water.

We first glide toward Europa, a moon of Jupiter with an icy shell. Beneath the frozen surface, however, space probes have detected evidence of a vast ocean of liquid water. Two other Jovian moons, Ganymede and Callisto, also are likely to host subsurface oceans, though these might be sandwiched between layers of ice. That makes life less likely, Cable says.

“Europa, we think, has a nice contact between the liquid water ocean and the rocky interior,” she said. “That’s important because the energy you can generate through chemistry can be utilized by life.”

A potentially more accessible example can be found among the moons of Saturn, the next planet out. Enceladus, though tiny, also hides a liquid water ocean beneath an icy shell. But in this case, scientists know the little moon is doing something extraordinary.

“Luckily, it happens to be sending free samples from its ocean into space,” Cable says. “Enceladus is the only place in the solar system with guaranteed access to a subsurface ocean without the need to dig or drill.”

NASA’s Cassini spacecraft detected convincing evidence of hydrothermal vents on its sea floor, and jets of ocean water shoot through cracks in the moon’s surface, known as tiger stripes (Europa might have similar plumes). The material from Enceladus’s jets, in fact, forms one of Saturn’s rings.

Cassini flew through the plume, and although its instruments were not designed to analyze ocean-water samples – when it was built, the nature of these distant ocean worlds was unknown – it did pick up important clues.

These include complex organic molecules, salts similar to those in Earth’s oceans, and silicate “nanograins” and other evidence indicating the presence of hydrothermal activity.

Gases detected in the plume , hydrogen and methane, suggest enough energy is present to provide fuel for life.

“If there’s that much energy, why isn’t there life eating it?” Cable asks. So far, no one knows the answer.

“Hopefully a future mission will journey back to Enceladus and bring today’s modern sensitive instruments to this test,” she said.

Then there’s Titan.

Though smaller and with lighter gravity than Earth, Titan reminds us of our own world, if perhaps reflected through a fun-house mirror. Nitrogen dominates this moon’s atmosphere, as it does Earth’s. And Titan is the only other body in the solar system with rain, lakes and rivers – a whole hydrologic cycle in fact. Its flowing lakes and rivers are made of the hydrocarbons, methane and ethane.

Flowing water is not an option; Titan is nightmarishly cold, and water is essentially rock on its surface.

Titan also possesses a subsurface ocean of water, though deep down, and it’s unknown whether the ocean makes contact with anything from the surface. If it does, mixing with complex chemistry on the surface could provide fuel for life.

If it doesn’t, there’s another possibility. The chemical brew on the surface could power life as we don’t know it: exotic forms based on completely different components and chemical reactions.

“Titan allows us to test a completely separate hypothesis of life,” Cable said. “It has a completely different liquid on its surface.”

The extreme cold on Titan’s surface, of course, means chemistry happens very slowly if at all. That could make “weird life” far less likely.

NASA is planning a mission called “Dragonfly,” a rotary flier that will hop from place to place on the surface – and maybe solve some of Titan’s mysteries.

"The more we study our own cosmic backyard, the more surprises we find," Cable said. "And I'm excited. We'll be surprised more and more as we continue to extend our senses to the outer solar system and beyond."

Related Terms

Explore more.

Artist's concept shows the red-dwarf star, TRAPPIST-1, at the upper left, with two large dots on the face of the disk representing transiting planets; five more planets are shown at varying positions descending toward the lower right as they orbit the star. Artist's concept shows the TRAPPIST-1 planets as they might be seen from Earth using an extremely powerful – and fictional – telescope. Credit: NASA/JPL-Caltech

That Starry Night Sky? It’s Full of Eclipses

Illustration shows the upper two-thirds of a gas-giant planet, TOI-4600 c, that is similar to Saturn (minus the rings). Cloud bands alternate between light tan, yellow, and darker yellow verging on green.

Discovery Alert: a Long Year for a ‘Cold Saturn’

Two recently discovered exoplanets, gas giants possibly similar to Saturn, could be candidates for further atmospheric investigation.

what is solar system essay

More Planets than Stars: Kepler’s Legacy

The Kepler mission enabled the discovery of thousands of exoplanets, revealing a deep truth about our place in the cosmos: there are more planets than stars in the Milky Way galaxy. The road to this fundamental change in our understanding of the universe, however, required almost 20 years of persistence before the mission became a […]

Discover More Topics From NASA

Search for Life

Photo of a planet with a bright purple glow emitting from behind

Black Holes

what is solar system essay

what is solar system essay

Scientists Say They've Found More Evidence of Hidden Planet in Our Solar System

Beyond neptune.

S cientists have long been hunting for a hidden planet out in the furthest reaches of our Solar System — and new research suggests with even more credibility that it actually is out there.

In two new papers — one published in the Astronomical Journal and another shared but not yet peer-reviewed  — the scientists responsible for popularizing the theory of a so-called " Planet 9 " argue that the hidden world may have been right under our noses this whole time.

The crux of the theory, as Caltech planetary researchers and paper coauthors Caltech's Konstantin Batygin and Mike Brown have long claimed, relies on what are known as "trans-Neptunian objects," or TNOs, that lie beyond the planet of Neptune in the outer edges of our solar system.

As  Scientific American notes in its reporting on the new research, the most important of these TNOs is Sedna, a dwarf planet  Caltech researchers discovered in 2004 that's considered the most distant object ever discovered in the Solar System. It has a very wonky orbit respective to the other things that make their way around our Sun, and as scientists began to discover more of these sorts of objects , a pattern emerged that suggested that something was affecting their elliptical axes.

Planetary Gambit

Named as a bit of a joke in the direction of planetary scientists chagrined at the de-planetification of Pluto in 2006, Planet 9 — or P9 as it's affectionately called — arose as a sort of Schrodinger's Planet, SciAm  explains. What if, as the Caltech researchers began to wonder, a planet was affecting the orbits of TNOs?

Thus far, nobody has directly observed such a planet, but in the new papers that both deal with the search for P9, Batygin and Brown maintain that after looking at more and more TNOs, the best and simplest explanation for their strange orbits is that they're caught up in the "gravitational perturbations" of a planet we haven't yet spotted.

The next steps, as the researchers behind the papers urge, is to utilize the power of the next generations of space observatories to try to find it — though as they caution, it still may be a while before P9, or whatever is affecting the TNOs, is detected.

In particular, Batygin, Brown, et al are excited about the upcoming Vera C Rubin Observatory in Chile, which is slated to be turned on in 2025 and will "be sensitive to all but the faintest and most northern predicted positions," as they predict in the Astronomical Journal .

"This upcoming phase of exploration," they wrote in the arXiv paper, "promises to provide critical insights into the mysteries of our solar system’s outer reaches."

More on our home galaxy: Ancient Structures Wound Together to Form Our Galaxy, Astronomers Find

The post Scientists Say They've Found More Evidence of Hidden Planet in Our Solar System appeared first on Futurism .

Scientists have long been hunting for a hidden planet in our Solar System — and new research suggests that it's out there. 

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  1. Solar System Essay for Students and Children

    500+ Words Essay on Solar System. Our solar system consists of eight planets that revolve around the Sun, which is central to our solar system. These planets have broadly been classified into two categories that are inner planets and outer planets. Mercury, Venus, Earth, and Mars are called inner planets. The inner planets are closer to the Sun ...

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    500+ Words Essay on Solar System. The Sun and all other planets and celestial bodies that revolve around it are together called a solar system. Our solar system consists of eight planets and an asteroid belt. These planets are termed inner and outer planets. Earth, Venus, Mercury and Mars are considered inner planets closer to the Sun and ...

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    Solar System. The Solar System is the Sun and all the objects that travel around it. The Sun is orbited by planets, asteroids, comets and other things. Planets and dwarf planets of the Solar System. Compared with each other, the sizes are correct, but the distances are not. The Solar System is about 4.568 billion years old. [1]

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    solar system, The Sun, its eight major planet s, the dwarf planets and small bodies, and interplanetary dust and gas under the Sun's gravitational control. Another component of the solar system is the solar wind. The Sun contains more than 99% of the mass of the solar system; most of the rest is distributed among the planets, with Jupiter ...

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    Our Solar System: Facts. There are many planetary systems in the universe, with planets orbiting host stars. Our planetary system is called "the solar system" because we use the word "solar" to describe things related to our star, after the Latin word for Sun, "solis."

  12. READ: How Our Solar System Formed (article)

    The Solar System that we live in consists of a medium-size star (the Sun) with eight planets orbiting it. The planets are of two different types. The four inner planets, those closest to the Sun, are Mercury, Venus, Earth, and Mars. They are smaller and composed mainly of metals and rocks. The four outer planets — Jupiter, Saturn, Uranus, and ...

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    Essay on Solar System. We see the sun every day shining in the sky and at night, we see the moon. Many other heavy bodies like satellites, meteoroids, and asteroids not visible to our naked eyes also make up the solar system. The sun and its planets together form the Solar System. The existence of the Solar System is about 4.6 billion years old.

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    The solar system consists of the sun and everything that orbits, or travels around, the sun. This includes the eight planets and their moons, dwarf planets, and countless asteroids, comets, and other small, icy objects. However, even with all these things, most of the solar system is empty space.

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    Hello, Pluto! In July of 2015, a spacecraft named New Horizons arrived at Pluto after a long journey. It took amazing pictures of this dwarf planet and will continue to study other objects in the Kuiper Belt from 2018 to 2022. Find out more about Pluto. Make a comet on a stick!

  18. Essay on Solar System for School Students

    Essay on Solar System: Our solar system consists of one Sun and eight (formerly nine) planets. These eight planets are gravitationally bound by the Sun on their orbits. Apart from these eight planets, there are more than 210 known planetary satellites, asteroids, comets, and other icy bodies that are assembled in the Solar system. The first ...

  19. Solar System Essay: 500+ Words Essay On Solar System In English

    Solar System Essay: The solar system is a system comprising the Sun and the eight planets that revolve around it.Our solar system is one among the billions of other solar systems that exist in the Milky Way Galaxy. The Sun is the biggest star of our solar system and it is the central body with the highest gravity.

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    The Solar System and its planets. The Solar System is made up of the Sun and all of the smaller objects that move around it. Apart from the Sun, the largest members of the Solar System are the eight major planets. Nearest the Sun are four fairly small, rocky planets - Mercury, Venus, Earth and Mars. Beyond Mars is the asteroid belt - a region ...

  21. Solar System Essay In English For School Students

    The solar system essay is a remarkable and awe-inspiring essay about encompassing the Sun and its eight major planets, their moons, countless asteroids, and a myriad of comets. At its center is the Sun - a blazing ball of nuclear fusion that sustains life on Earth and all other celestial bodies nearby. Orbiting this source of energy are ...

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    For example, early studies of astronomy adopted the geocentric model in that they believed that the sun, planets, moon and stars revolved around the Earth, not only that there was also the belief that the Earth was in fact flat (Copernicus, 2009: 83). It is based on this that when examining the established theories on the origins of the solar ...

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    Solar System Processes Research. The disk was formed because of the pulling action of the gravitational force between the nebula particles that acted towards the center of the disk. The Solar System Definition. A 'Shoot for the Moon' is a revelation of the first maiden journey to space by the Americans in the 1960s.

  24. Life in Our Solar System? Meet the Neighbors

    Our solar system's majestic giants - Jupiter, Saturn, Uranus, Neptune - and their trains of moons might almost be considered solar systems in their own right. Some of these moons could well be habitable worlds; one of them, Titan, has a thick atmosphere, rain, rivers and lakes, though composed of methane and ethane instead of water.

  25. Scientists Say They've Found More Evidence of Hidden Planet in ...

    Beyond Neptune. S cientists have long been hunting for a hidden planet out in the furthest reaches of our Solar System — and new research suggests with even more credibility that it actually is ...