Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Today's top fuel dragsters take off with more force than the space shuttle.
120
Only 55% of Americans know that the sun is a star.
986
If you went out into space, you would explode before you suffocated because there's no air pressure.
149