The Coldest Known Place In The Universe Is A Laboratory

While space itself is extremely cold, scientists have achieved temperatures even lower than the cosmic background radiation in labs. Researchers at the University of Colorado Boulder cooled rubidium atoms to just 38 billionths of a degree above absolute zero, creating a Bose-Einstein condensate to study quantum phenomena.

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https://jila.colorado.edu/our-research/research-areas/ultracold-atoms/bose-einstein-condensates

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Published: March 29, 2026
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Cool Physics Space Weird Absolute Zero Bose-Einstein Condensate Ultracold Atoms Quantum Physics Temperature Laboratory

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