Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
41% of the moon is not visible from earth at any time.
103
If two pieces of metal touch in space, they become permanently stuck together.
808
There are two golf balls sitting on the moon.
721
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
Only 55% of Americans know that the sun is a star.
986