Astronauts get taller when they are in space.
224
The heart of an astronaut actually gets smaller when in outer space.
216
41% of the moon is not visible from earth at any time.
103
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
It 'snows' metal on Venus.
13
Mars had an oxygen-rich atmosphere around 4 billion years ago
13