Venus is the only planet that rotates clockwise.
310
41% of the moon is not visible from earth at any time.
103
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
There are two golf balls sitting on the moon.
721
Some asteroids have other asteroids orbiting them.
131
The sun is 330,330 times larger than the earth!
190
Earth is the only planet in our solar system that's not named after a god or goddess.
17