Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Pluto is smaller than Russia.
9
Summer on Uranus lasts for 21 years.
358
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Buzz Aldrin’s mother’s maiden name was Moon.
9
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219