Written by: Lavanya Karki - 31012, Grade V
Posted on: 07 November, 2023
The Solar System originated about 4.6 billion years ago. The idea of the Solar System was proposed by a Polish astronomer known as Nicolaus Copernicus. Initially, there were only four planets: Mercury, Venus, Earth, and Mars. The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the centre, forming the Sun. The remaining material flattened into a disk from which the planets, moons, asteroids, and other Solar System bodies formed.
As we all know, the Solar System consists of eight planets, five dwarf planets, stars, and satellites. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The dwarf planets include Ceres, Pluto, Haumea, Makemake, and Eris.
Galaxies are sprawling systems of gas, dark matter, and anywhere from at least a billion to trillions of stars held together by gravity. Here are some interesting facts about galaxies:
Examples of galaxies include the Milky Way Galaxy, Andromeda Galaxy, Virgo A, and Cygnus A.
Our Solar System is where Earth originated. The hottest planet in our Solar System is Venus, with temperatures reaching up to 450°C, while the coldest is Uranus, with temperatures as low as -195°C (-320°F). Earth has one natural satellite, the Moon. The largest moon in the Solar System is Ganymede.
Here are some more interesting facts about the Solar System:
