Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The population of the Earth has more than doubled since 1950.
151
The light hitting the earth right now is 30 thousand years old.
163
Pluto is smaller than Russia.
9
Today's top fuel dragsters take off with more force than the space shuttle.
120
Buzz Aldrin’s mother’s maiden name was Moon.
9
If you went out into space, you would explode before you suffocated because there's no air pressure.
149