If two pieces of metal touch in space, they become permanently stuck together.
808
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
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
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