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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1. 100 Words Essay on The Solar System
2. 200 Words Essay on The Solar System
3. 500 Words Essay on The Solar System

100 Words Essay on The 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.

200 Words Essay on The Solar System

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.

500 Words Essay on The Solar System

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.