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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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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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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If two pieces of metal touch in space, they become permanently stuck together.
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If NASA sent birds into space they would soon die; they need gravity to swallow.
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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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