
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 | 913 | Founded | 20 years ago |
|---|---|---|---|---|---|
| Number of Listeners | Categories | AstronomyNatural SciencesScience | |||

Help us keep Astronomy Cast ad-free: patreon.com/astronomycast We removed all ads from the show. We need to get to 1500 patrons to keep it this way. We need your support! Streamed live on Sep 21, 2026 Hosted by: Fraser Cain and Dr. Pamela L. ... more
Help us keep Astronomy Cast ad-free: patreon.com/astronomycast We removed all ads from the show. We need to get to 1500 patrons to keep it this way. We need your support! Streamed live on Sep 7, 2026. Hosted by: Fraser Cain (@frasercain) and ... more
After 20 years, it's time to make some changes. With your patronage we can ditch the ads & turn up the science. Please join our Patreon community at patreon.astronomycast.com
Streamed live on Sep 7, 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) This show is supported through people like you on Patreon.com/AstronomyCast To celebrate our 20th season, we thought we'd go back right to the begi... more
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I recall inviting Dr. Pamela Gay to an event I hosted once, so knowing her style, I started listening more than a few years back. As an astronomy educator I appreciate hearing about topics I deal with regularly in my planetarium job and for the accurate, up-to-date information they provide.
A scientist at the top of her field and a likable space journalist and content creator, both of whom are excellent communicators. No wonder their pod has been in production for 20 years. What’s not to like?
I have loved this show for many years. Recently I changed jobs and have a long commute. To pass the time I have been working backwards through old shows. Sadly the past library has suddenly been blocked by subscriber only. Guess I’ll have to move over to Supper Massive podcast for my travels.
And we’re back from a break, but it’s time for another break…
I love the show, been listening since the beginning, but it’s hard to recommend the show now with so many breaks in the middle. Any way you can just clump the ads at the beginning and end?
Pamela and Fraser have an amazing track record of producing incredibly high-quality astronomy programs that cover absolutely everything you can imagine. Fraser is a fantastic journalist, and Pamela is such a wonderful communicator of quite complex ideas. Their chemistry is fantastic, but above all, they are totally committed to making astronomy and science available and accessible to everyone, even if you can’t afford to subscribe. Hyper mega astro superstars. Listen now!!!
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.
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Apple Podcasts | #126 | |
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Apple Podcasts | #80 | |
Apple Podcasts | #130 |
Recent interactions between the hosts and their guests.
Listeners, social reach, demographics and more for this podcast.
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A science-forward show that makes astronomy accessible through lively host banter and clear explanations. Episodes consistently cover how the cosmos works—from rocket tech and planetary science to starlight, exoplanets, and cosmic phenomena—often weaving in recent research, mission updates, and thought experiments. The format centers on two long-running, enthusiastic hosts who balance rigorous science with approachable storytelling, and it's noted for its upbeat chemistry, transparency about funding, and audience engagement. A standout trait is its long-running dedication to outreach and citizen science, sometimes alongside sponsorships and Patreon support which help sustain frequent content. This combination makes it well-suited for listen... 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. SpaceTime with Stuart Gary
4. Ask a Spaceman!
5. The Supermassive Podcast
Astronomy Cast launched 20 years ago and published 913 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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