If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The earth rotates more slowly on its axis in March than in September.
145
It takes eight and a half minutes for light to get from the sun to earth.
159
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127