A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
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
Venus is the only planet that rotates clockwise.
310
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175