41% of the moon is not visible from earth at any time.
103
It 'snows' metal on Venus.
13
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219