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
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
It takes eight and a half minutes for light to get from the sun to earth.
159
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
The Earth gets 100 tons heavier every day due to falling space dust.
673
Sound doesn't travel in space.
255
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10