Some asteroids have other asteroids orbiting them.
131
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277