A 100-pound person on Earth would weigh 38 pounds on Mars.
102
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
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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
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
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11