The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Astronauts cannot burp in space.
232
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
41% of the moon is not visible from earth at any time.
103
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124