Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
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
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100