41% of the moon is not visible from earth at any time.
103
Summer on Uranus lasts for 21 years.
358
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Buzz Aldrin’s mother’s maiden name was Moon.
9
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
It 'snows' metal on Venus.
13
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160