Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Buzz Aldrin’s mother’s maiden name was Moon.
9
41% of the moon is not visible from earth at any time.
103
