An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Lightning strikes about 6,000 times per minute on this planet!
158
Earth is the only planet in our solar system that's not named after a god or goddess.
17
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
41% of the moon is not visible from earth at any time.
103