All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
The heart of an astronaut actually gets smaller when in outer space.
216
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Astronauts get taller when they are in space.
224