A comet's tail always points away from the sun.
2
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Buzz Aldrin’s mother’s maiden name was Moon.
9
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
41% of the moon is not visible from earth at any time.
103
There are two golf balls sitting on the moon.
721
Venus is the only planet that rotates clockwise.
310
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7