Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Sound doesn't travel in space.
255
If two pieces of metal touch in space, they become permanently stuck together.
808
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178