Hot galaxies alert!
Jan 09, 2026•8 min•Ep. 1410
Episode description
Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently found a very young cluster that’s hotter than the surface of the sun. More on why the finding is so shocking, plus elephant’s remarkable sniffing abilities and a new discovery about butterfly migration in this episode of Short Wave.
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Interested in more science news? Email us your question at shortwave@npr.org.
Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.
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