
Take a fact-based journey through the cosmos. Tune in to hear weekly discussions on astronomical topics ranging from planets to cosmology. Hosted by Fraser Cain (Universe Today) and Dr. Pamela L. Gay (Planetary Science Institute), this show brings the questions of an avid astronomy lover direct to an astronomer. Together Fraser and Pamela explore what is known and being discovered about the univer... more
| Publishes | Weekly | Episodes | 672 | Founded | 20 years ago |
|---|---|---|---|---|---|
| Number of Listeners | Categories | Natural SciencesAstronomyScience | |||

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 giant and finally a white dwarf. This is catastro... more
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 life get started in the first place? It appears th... more
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. ... more
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: Wolf-Rayet stars! These are massive, dying stars... more
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I always look forward to the next edition of Astronomy Cast.
Great podcast, thanks for sharing
This is the best general astronomy podcast out there
I am possibly Fraser and Pamela’s biggest fan. These guys are the best!
5 Stars but these ad breaks whewww.
Key themes from listener reviews, highlighting what works and what could be improved about the show.
How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.
Apple Podcasts | #8 | |
Apple Podcasts | #142 | |
Apple Podcasts | #7 | |
Apple Podcasts | #9 | |
Apple Podcasts | #95 | |
Apple Podcasts | #123 |
Recent interactions between the hosts and their guests.
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A science-forward show unpacking astronomy topics with accessible explanations and a steady, enthusiastic banter between long-time hosts. Episodes cover everything from stellar remnants and cosmic phenomena to the tools and methods used to study the universe, often tying in historical context and real-world observations. The format blends clear teaching with light humor, making complex ideas approachable for curious listeners who enjoy grounded science, practical astrophysics, and occasional commentary on related topics. A notable strength is the duo's ability to translate advanced concepts into engaging, memorable discussions while maintaining a broad appeal for both newcomers and seasoned space fans. This mix—rigor plus relatability—helps... more
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These podcasts share a similar audience with Astronomy Cast:
1. Universe Today Podcast
2. The 365 Days of Astronomy
3. Ask a Spaceman!
4. SpaceTime with Stuart Gary
5. The Supermassive Podcast
Astronomy Cast launched 20 years ago and published 672 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.
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