Ep. 787: Evolved Stars (They're not dead yet!)

Ep. 787: Evolved Stars (They're not dead yet!)

Astronomy Cast Ep. 787: Evolved Stars (They're not dead yet!) By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 16, 2026. Main sequence stars spend most of their time being… normal. Fusing hydrogen into helium in their cores. Producing radiation. But as their stockpiles of hydrogen run out they switch to other fuels, starting to climb the ladder of the periodic table of elements. And this is when things get weird. As we get more and more observations of the cosmos, our understanding gets more detailed. In this episode we look at all the ways a star can die and the updates that we've learned in the past 20 years of Astronomy Cast. Image Credit: NASA Galex This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Burry Gowen, Eric Lee, Jeanette Wink, Michael Purcell, Andrew Poelstra, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Joe McTee, Sergey Manouilov, Siggi Kemmler, Sergio Sancevero

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Episoder(676)

Ep. 794: Stargate Science

Ep. 794: Stargate Science

Astronomy Cast Ep. 794: Stargate Science By Fraser Cain & Dr. Pamela Gay Streamed live on May 10, 2026. We continue our ad-hoc miniseries through sci-fi franchises. This week we'll talk about Stargate...

18 Mai 38min

Ep. 793: Star Trek Science

Ep. 793: Star Trek Science

Astronomy Cast Ep. 793: Star Trek Science By Fraser Cain & Dr. Pamela Gay Streamed live May 4, 2026. Today we continue our mini-series; evaluating the science of various sci-fi franchises. We did Star...

11 Mai 34min

Ep. 792: Star Wars Science

Ep. 792: Star Wars Science

Astronomy Cast Ep. 792: Star Wars Science By Fraser Cain & Dr. Pamela Gay Streamed live April 29, 2026. May the fourth be with you! Isn't that what people say on the international holiday known as Sta...

4 Mai 40min

Ep. 791: Chang'e Sample Return

Ep. 791: Chang'e Sample Return

Astronomy Cast Ep. 791: Chang'e Sample Return By Fraser Cain & Dr. Pamela Gay Streamed live on Apr 20, 2026. Last week we talked about samples from other worlds delivered to Earth by meteorites. But s...

27 Apr 33min

Ep. 790: Meteorites From Other Worlds

Ep. 790: Meteorites From Other Worlds

Astronomy Cast Ep. 790: Meteorites From Other Worlds By Fraser Cain & Dr. Pamela Gay Streamed live April 17, 2026. Even though humanity has returned samples from a fraction of the worlds in the solar ...

20 Apr 33min

Ep. 789: What Happens When a Planet's Star Dies

Ep. 789: What Happens When a Planet's Star Dies

Astronomy Cast Ep. 789: What Happens When a Planet's Star Dies By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 30, 2026. A star like the Sun only lasts about 10 billion years and it becomes a red...

6 Apr 29min

Ep. 788: Life's Molecules Form in Space

Ep. 788: Life's Molecules Form in Space

Astronomy Cast Ep. 788: Life's Molecules Form in Space By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 23, 2026. The theory of evolution how life takes on its wildly different forms. But how did ...

30 Mar 32min

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