In the last 7 years, humanity has discovered 43 potentially habitable planets.
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The earth is .02 degrees hotter during a full moon.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
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The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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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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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
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