The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Pluto is smaller than Russia.
9
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6