In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Today's top fuel dragsters take off with more force than the space shuttle.
120
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
It would take more than 150 years to drive a car to the sun.
569
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Only 55% of Americans know that the sun is a star.
986
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