On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
41% of the moon is not visible from earth at any time.
103
Buzz Aldrin’s mother’s maiden name was Moon.
9