The heart of an astronaut actually gets smaller when in outer space.
216
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
There are two golf balls sitting on the moon.
721
Some asteroids have other asteroids orbiting them.
131
Today's top fuel dragsters take off with more force than the space shuttle.
120
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Venus is the only planet that rotates clockwise.
310
The sun is 330,330 times larger than the earth!
190