The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Lightning strikes about 6,000 times per minute on this planet!
158
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
There are two golf balls sitting on the moon.
721
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10