Ep. 792: Star Wars Science
May 4, 2026 - 57:10
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Ep. 775: The Hydrogen 21-cm Line
Streamed live on Dec 15, 2025. Atomic hydrogen is the raw material for stars, but there’s a problem. It’s cold & dark, but it can do a very rare trick, releasing a photon in a very specific wavelength, known as the 21 ce...
About This Episode
Ep. 775: The Hydrogen 21-cm Line is an episode from 365 Days of Astronomy - Weekly Edition. Streamed live on Dec 15, 2025. Atomic hydrogen is the raw material for stars, but there’s a problem. It’s cold & dark, but it can do a very rare tri...
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This episode belongs to 365 Days of Astronomy - Weekly Edition.
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Episode Details
Published Dec 22, 2025, 57:00 long, audio available.
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