It 'snows' metal on Venus.
13
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Summer on Uranus lasts for 21 years.
358
Pluto is smaller than Russia.
9