Earth is the only planet in our solar system that's not named after a god or goddess.
17
The light hitting the earth right now is 30 thousand years old.
163
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
Pluto is smaller than Russia.
9
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8