An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
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
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The Earth gets 100 tons heavier every day due to falling space dust.
673
The heart of an astronaut actually gets smaller when in outer space.
216
Astronauts cannot burp in space.
232
It takes eight and a half minutes for light to get from the sun to earth.
159