Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Sound doesn't travel in space.
255
NASA invented baby food as we know it today.
7
A comet's tail always points away from the sun.
2