There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The population of the Earth has more than doubled since 1950.
151
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
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