The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The Earth gets 100 tons heavier every day due to falling space dust.
673
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178