Summer on Uranus lasts for 21 years.
358
It 'snows' metal on Venus.
13
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
NASA invented baby food as we know it today.
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 is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Mars had an oxygen-rich atmosphere around 4 billion years ago
13