Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Sound doesn't travel in space.
255
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
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12