Mars had an oxygen-rich atmosphere around 4 billion years ago
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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.
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The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
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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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In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
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There are more nerve cells in the human brain than there are stars in the Milky Way.
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An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
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