When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
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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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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
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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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Pluto is smaller than Russia.
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