41% of the moon is not visible from earth at any time.
103
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16