Some asteroids have other asteroids orbiting them.
131
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
Sound doesn't travel in space.
255
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82