Pluto is smaller than Russia.
9
Some asteroids have other asteroids orbiting them.
131
Sound doesn't travel in space.
255
There are two golf balls sitting on the moon.
721
Astronauts cannot burp in space.
232
The heart of an astronaut actually gets smaller when in outer space.
216
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
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219