Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
A comet's tail always points away from the sun.
2
Today's top fuel dragsters take off with more force than the space shuttle.
120
Astronauts cannot burp in space.
232
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The earth is .02 degrees hotter during a full moon.
157