More than 20 million meteoroids enter Earth's atmosphere every day.
139
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
The population of the Earth has more than doubled since 1950.
151
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
There are two golf balls sitting on the moon.
721
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