Some asteroids have other asteroids orbiting them.
131
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The heart of an astronaut actually gets smaller when in outer space.
216
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Astronauts cannot burp in space.
232
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194