A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
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.
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The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
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.
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