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Tlaloc_Temporal t1_j67quzu wrote on January 28, 2023 at 9:08 AM

Reply to comment by jonnyclueless in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames

Laser cooling works by adding exactly enough energy for an electron to emit it all in a single photon. This is one method of cooling things down without needing something colder.