There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
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
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
If two pieces of metal touch in space, they become permanently stuck together.
808
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
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
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