The solar system is a collection of planets, moons, asteroids, comets, dust and gas that orbit our local star, the sun. It includes the rocky inner planets Mercury, Venus, Earth and Mars; the gas giants Jupiter and Saturn; and the ice giants Uranus and Neptune. 

Between Mars and Jupiter is a collection of asteroids known as the asteroid belt, while beyond Neptune is where small icy bodies, like Pluto and comets, live.

How old is our solar system?


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