Only 55% of Americans know that the sun is a star.
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A comet's tail always points away from the sun.
2
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The heart of an astronaut actually gets smaller when in outer space.
216
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118