Short Wave

New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor. Join hosts Emily Kwong and Regina Barber for science on a different wavelength.If you're hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/shortwave

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Science

Hot galaxies alert!

Episode Date: January 9, 2026

Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently found a very young cluste...