In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
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
Sound doesn't travel in space.
255
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Only 55% of Americans know that the sun is a star.
986
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
Today's top fuel dragsters take off with more force than the space shuttle.
120