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Astronaut Christina Koch works on the Cold Atom Lab | by NASA Johnson
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Astronaut Christina Koch works on the Cold Atom Lab

iss061e145487 (Jan. 28, 2020) --- NASA astronaut and Expedition 61 Flight Engineer Christina Koch works on the Cold Atom Lab (CAL) swapping and cleaning hardware inside the quantum research device. The CAL enables research into the quantum effects of gases chilled to nearly absolute zero, which is colder than the average temperature of the universe.

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Taken on January 28, 2020