Mars had an oxygen-rich atmosphere around 4 billion years ago
13
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
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
It takes eight and a half minutes for light to get from the sun to earth.
159
The earth is .02 degrees hotter during a full moon.
157
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Sound doesn't travel in space.
255