41% of the moon is not visible from earth at any time.
103
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Buzz Aldrin’s mother’s maiden name was Moon.
9
Venus is the only planet that rotates clockwise.
310
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