On Saturn's moon Titan, gravity is so low and the atmosphere is so thick that humans could fly by flapping arms like wings

Star creation

Astounding astronomy and space factoids

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A subatomic particle (like an electron or photon) can exist in two places at the same time

Physics phactoids

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On Saturn's moon Titan, gravity is so low and the atmosphere is so thick that humans could fly by flapping arms like wings

Astounding astronomy and space factoids

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There is a black hole at the center of most galaxies

Astounding astronomy and space factoids

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98% of the atoms in the human body are replaced every year with new ones

Fascinating facts about the human body

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Electrons can change their location without passing through the intervening space

Physics phactoids

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