The population of the Earth has more than doubled since 1950.
151
The sun is 330,330 times larger than the earth!
190
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The heart of an astronaut actually gets smaller when in outer space.
216
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15