During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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Pumice is the only rock that floats on water.
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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