The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Today's top fuel dragsters take off with more force than the space shuttle.
120
Buzz Aldrin’s mother’s maiden name was Moon.
9
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
Some asteroids have other asteroids orbiting them.
131
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The heart of an astronaut actually gets smaller when in outer space.
216
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15