There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
Summer on Uranus lasts for 21 years.
358
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
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