Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
There are two golf balls sitting on the moon.
721
The earth is .02 degrees hotter during a full moon.
157
Lightning strikes about 6,000 times per minute on this planet!
158
Astronauts cannot burp in space.
232