If two pieces of metal touch in space, they become permanently stuck together.
808
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Buzz Aldrin’s mother’s maiden name was Moon.
9
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Astronauts get taller when they are in space.
224
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
Summer on Uranus lasts for 21 years.
358