An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
41% of the moon is not visible from earth at any time.
103
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Summer on Uranus lasts for 21 years.
358
Astronauts get taller when they are in space.
224
The earth is .02 degrees hotter during a full moon.
157
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Today's top fuel dragsters take off with more force than the space shuttle.
120