The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121