Venus is the only planet that rotates clockwise.
310
Sound doesn't travel in space.
255
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Earth is the only planet in our solar system that's not named after a god or goddess.
17
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127