Why are all the moons rocks? Can you see the gas moon in space? | Science - Dubai Week

There are more than 200 moons in our solar system. Most major planets except Mercury...

There are more than 200 moons in our solar system. Most major planets except Mercury and Venus have moons. Pluto and some other dwarf planets and many asteroids have small moons. Saturn and Jupiter h… [+3322 chars]

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