Ep. 778: Dyson Swarms

Ep. 778: Dyson Swarms

Astronomy Cast Ep. 778: Dyson Swarms By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 5, 2026. Freeman Dyson asked a fascinating question. What would it look like if a civilization was using all the energy coming from their star? And what form would this take? This introduced the concept of a Dyson Sphere, or more realistically, a Dyson Swarm surrounding a star. But if you're skeptical about the concept, you're in good company. 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 With special guest star Stella!

Jaksot(672)

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 Huhti 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 Huhti 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 Maalis 32min

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...

23 Maalis 30min

Ep. 786: Wolf-Rayet Stars

Ep. 786: Wolf-Rayet Stars

Astronomy Cast Ep. 786: Wolf-Rayet Stars By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 9, 2026. You think the Sun is a terrifying ball of fire and fury? Wait until you learn about today's topic...

16 Maalis 34min

Ep. 785: Magnetars

Ep. 785: Magnetars

Astronomy Cast Ep. 785: Magnetars By Fraser Cain & Dr. Pamela Gay Streamed live March 6, 2026. Magnetars are a special type of neutron star with physics that defy comprehension. Magnetic fields so pow...

9 Maalis 29min

Ep. 784: Pulsar-Powered Science

Ep. 784: Pulsar-Powered Science

Astronomy Cast Ep. 784: Pulsar-Powered Science By Fraser Cain & Dr. Pamela Gay Streamed live on Feb 16, 2026. Pulsars are dead stars and fascinating in their own right, but astronomers can use their p...

2 Maalis 33min

Ep. 783: Cataclysmic Variable Stars

Ep. 783: Cataclysmic Variable Stars

Astronomy Cast Ep. 783: Cataclysmic Variable Stars By Fraser Cain & Dr. Pamela Gay Streamed live on Feb 16, 2026. There are many types of variable stars. Today we're gonna talk about cataclysmic varia...

23 Helmi 30min

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