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
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
The heart of an astronaut actually gets smaller when in outer space.
216
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The light hitting the earth right now is 30 thousand years old.
163