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
There are two golf balls sitting on the moon.
721
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Pluto is smaller than Russia.
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
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Lightning strikes about 6,000 times per minute on this planet!
158