If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The heart of an astronaut actually gets smaller when in outer space.
216
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
41% of the moon is not visible from earth at any time.
103
Astronauts get taller when they are in space.
224
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11