Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The earth is .02 degrees hotter during a full moon.
157
The earth travels through space at 660,000 miles per hour.
189
The light hitting the earth right now is 30 thousand years old.
163
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10