There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
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
41% of the moon is not visible from earth at any time.
103
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The population of the Earth has more than doubled since 1950.
151