The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Astronauts cannot burp in space.
232
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 light hitting the earth right now is 30 thousand years old.
163
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9