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
The light hitting the earth right now is 30 thousand years old.
163
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
It 'snows' metal on Venus.
13
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10