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 population of the Earth has more than doubled since 1950.
151
Today's top fuel dragsters take off with more force than the space shuttle.
120
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
It takes eight and a half minutes for light to get from the sun to earth.
159
More than 20 million meteoroids enter Earth's atmosphere every day.
139
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
