The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
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
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Astronauts get taller when they are in space.
224
The earth travels through space at 660,000 miles per hour.
189
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14