A 100-pound person on Earth would weigh 38 pounds on Mars.
102
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
It takes eight and a half minutes for light to get from the sun to earth.
159
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
The population of the Earth has more than doubled since 1950.
151
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31