Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
There are two golf balls sitting on the moon.
721
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
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 population of the Earth has more than doubled since 1950.
151