Solar System
The Polish mathematician and astronomer Nicolaus Copernicus had theorised the Earth didn't in fact sit in the centre of the universe, with everything revolving around it, in 1543. The collection of eight planets and their moons in orbit round the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets. The planets of the solar system are (in order of distance from the sun) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The Solar System is the gravitationally bound system of the Sun and the objects that orbit it. It formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in the planet Jupiter. the sun together with the group of celestial bodies that are held by its attraction and revolve around it also : a similar system centered on another star. Solar system is composed of eight planets as s...