The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Some asteroids have other asteroids orbiting them.
131
Jupiter is bigger than all the other planets combined.
254
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The earth travels through space at 660,000 miles per hour.
189
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9