Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A comet's tail always points away from the sun.
2
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The earth rotates more slowly on its axis in March than in September.
145
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
Astronauts get taller when they are in space.
224
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