All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The light hitting the earth right now is 30 thousand years old.
163
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Sound doesn't travel in space.
255
If two pieces of metal touch in space, they become permanently stuck together.
808
41% of the moon is not visible from earth at any time.
103
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