Astronauts on the International Space Station observe about 15 sunrises and sunsets every day
Astounding astronomy and space factoids
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Nuclear legacy
Physics phactoids
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Windy planet
Astounding astronomy and space factoids
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Sharks before trees
Life and biology factoids
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Big bang static
Physics phactoids
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Atoms in a grain of sand
Physics phactoids
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More bacteria than human cells
Life and biology factoids
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