From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Jupiter is bigger than all the other planets combined.
254
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The light hitting the earth right now is 30 thousand years old.
163
If NASA sent birds into space they would soon die; they need gravity to swallow.
146