The population of the Earth has more than doubled since 1950.
151
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
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Astronauts get taller when they are in space.
224
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