Written by: Simona Shrestha - 26011, Grade VIII
Posted on: 17 November, 2021
Our solar system is around or more than 500 years old, known as the solar system in the milky way galaxy. The solar system was formed about 4.5 billion years ago. The solar system is located in the milky way orion star cluster; only 15percent of stars in the galaxy host planetary systems and one of the star is the sun. and about what is the milky way galaxy it is considered with the sun and all the planets around it are part of a galaxy known as the Milky Way Galaxy. And a galaxy is a large group of stars, gas, and dust together by gravity. The planets are in various shapes and sizes. The planet is composed primarily of hydrogen and helium with various degrees of element is jovian. Planets are smaller than stars and they do not produce light. Apart from our solar system the scientist has discovered many thousands of planets which revolve around the milky way.
We all have been reading and learning about the solar system ever since we were kids. As we all know, the solar system is the collection of eight planets in an orbit around the sun and moon with smaller bodies in the form of asteroids, meteoroids, and comets. The eight planet names are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. And also there is a possible ninth planet which is pluto. Pluto is after neptune. But we don’t count Pluto with the eight planets. Let’s recall about the eight planets:
Mercury: Mercury is the smallest planet in the Solar System and the closest to the Sun. A year on Mercury is just 88 days long. And mercury also has a molten core. Mercury is known as the second densest planet.
Venus: Venus is the second planet from the Sun. It is named after the Roman goddess of love and beauty. Venus is the second brightest natural object in the night sky after the Moon. A day on Venus is longer than a year. And Venus is hotter than the mercury.
Earth: Earth is the third planet from the Sun and the only heavenly object known to give shelter and support life. About 29.2% of Earth's surface consists of continents and islands. Earth is the only planet which is not named after a god. Earth is the densest planet in the Solar System.
Mars: Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System. Mars carries the name of the Roman god of war and is often referred to as the "Red Planet". Mars has 2 moons called Deimos and Phobos. Mars was once a watery planet.
Jupiter: Jupiter is the fifth planet from the Sun and the largest in the Solar System. Jupiter Is The Fastest Spinning Planet In The Solar System. Jupiter's Magnetic Field Is 14 Times Stronger Than Earth's. And Jupiter Has 67 Moons.
Saturn: Saturn is the sixth planet from the Sun and the second-largest in the Solar System. You cannot stand on Saturn. The rings around Saturn are huge but thin. And Saturn would float in water because it is mostly made of gas. No one knows how old Saturn's rings are.
Uranus: Uranus is the seventh planet from the Sun. Its name is a reference to the Greek god of the sky. Uranus is the coldest planet in the Solar System and the atmosphere of Uranus contains ice. It has 27 moons.
Neptune: Neptune is the eighth and farthest known Solar planet from the Sun. Neptune was not known to the ancients. It spins on its axis very rapidly. Neptune has a very thin collection of rings. Also neptune has a very active climate. Neptune is dark, cold, and very windy.
