More than 20 million meteoroids enter Earth's atmosphere every day.
139
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
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
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
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
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Astronauts cannot burp in space.
232
The earth is .02 degrees hotter during a full moon.
157