The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Some asteroids have other asteroids orbiting them.
131
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15