Jupiter's moon Ganymede, is larger than the planet Mercury!
149
There are two golf balls sitting on the moon.
721
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
A comet's tail always points away from the sun.
2
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11