Sound doesn't travel in space.
255
Only 55% of Americans know that the sun is a star.
986
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Today's top fuel dragsters take off with more force than the space shuttle.
120
Jupiter is bigger than all the other planets combined.
254
The earth rotates more slowly on its axis in March than in September.
145
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127