There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
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 Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Astronauts cannot burp in space.
232
The population of the Earth has more than doubled since 1950.
151