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 universe around us. Astronomy Cast is supported thru patreon.com/AstronomyCast.
Chart trend
Position in the Astronomy chart (US), last 90 days.
#1#10#18JunJulAugSep
#1
all-time peak
26
days in the top 3 since Nov 2024
Latest episodes
Showing 20 · updated from the feed
Ep. 799: Heavy Lift Rockets
Astronomy Cast Ep. 799: Heavy Lift Rockets By Fraser Cain & Dr. Pamela Gay Streamed live June 22, 2026. The Saturn 5 was a monster, capable of sending humans and a lander
Jun 29 39 min
Ep. 797: Summer in Space
Astronomy Cast Ep. 797: Summer in Space By Fraser Cain & Dr. Pamela Gay Streamed live June 10, 2026. We're about to take a much needed 2 month hiatus. But just because we
Jun 15 34 min
Ep. 796: Oceans & Organics on Mars
Astronomy Cast Ep. 796: Oceans & Organics on Mars By Fraser Cain & Dr. Pamela Gay Streamed live on Jun 1, 2026. Mars is cold & dry today, but the evidence is growing that
Jun 8 30 min
Ep. 795: Expanse Science
Astronomy Cast Ep. 795: Expanse Science By Fraser Cain & Dr. Pamela Gay Streamed live on May 10, 2026. This is the final episode of our series on sci-fi universes. And th
Jun 1 32 min
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
May 18 38 min
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
May 11 34 min
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 inte
May 4 40 min
Ep. 775: The Hydrogen 21-cm Line
Astronomy Cast Ep. 775: The Hydrogen 21-cm Line By Fraser Cain & Dr. Pamela Gay Streamed live on Dec 15, 2025. Atomic hydrogen is the raw material for stars, but there's
Dec 22 2025 34 min
Ep. 761: It's Here! The Vera Rubin Observatory
Astronomy Cast Ep. 761: It's Here! The Vera Rubin Observatory By Fraser Cain & Dr. Pamela Gay Streamed live June 25, 2025. The time has come. The mighty Vera Rubin Observ
Jun 30 2025 30 min
Ep. 759: The Commercial Space Program
Astronomy Cast Ep. 759: The Commercial Space Program By Fraser Cain & Dr. Pamela Gay Streamed live on Jun 9, 2025. Humanity has turned its focus back to the Moon, sending
Jun 16 2025 35 min
Ep. 757: CubeSats
Astronomy Cast Ep. 757: CubeSats By Fraser Cain & Dr. Pamela Gay Streamed live on May 19, 2025. Computers are getting smaller, faster and more capable, which has enabled
May 26 2025 33 min
Ep. 756: SphereX
Astronomy Cast Ep. 756: SphereX By Fraser Cain & Dr. Pamela Gay Streamed live on May 12, 2025. NASA's newly launched SphereX mission is up & operational and has completed
May 19 2025 28 min
Ep. 755: Intermediate Mass Black Holes
Astronomy Cast Ep. 755: Intermediate Mass Black Holes By Fraser Cain & Dr. Pamela Gay Streamed live on May 5, 2025. Hosted by: Fraser Cain and Dr. Pamela L. Gay. There ar
May 12 2025 31 min
Ep. 753: Why is the Moon's South Pole So Interesting?
Astronomy Cast Ep. 753: Why is the Moon's South Pole So Interesting? By Fraser Cain & Dr. Pamela Gay Streamed live on Apr 21, 2025. I'm sure you've heard that all eyes ar
Apr 28 2025 35 min
Ep. 752: Should We Go to the Moon or Mars Next?
Astronomy Cast Ep. 752: Should We Go to the Moon or Mars Next? By Fraser Cain & Dr. Pamela Gay Streamed live on Apr 16, 2025. Hosted by: Fraser Cain and Dr. Pamela L. Gay
Apr 21 2025 36 min
Ep. 748: Fast Radio Bursts
Astronomy Cast Ep. 748: Fast Radio Bursts By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 17, 2025. For the briefest of moments, some dead stars can flash brighter t
Mar 24 2025 28 min
Ep. 746: Dust Storms
Astronomy Cast Ep. 746: Dust Storms By Fraser Cain & Dr. Pamela Gay Streamed live Feb 24, 2025. We have dust storms on Earth and of course the famous dust storms on Mars.
Mar 3 2025 28 min
Ep. 741: Technosignatures
Astronomy Cast Ep. 741: Technosignatures By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 20, 2025. As humanity developed more advanced technology, we're having a lar
Jan 27 2025 36 min
Ep. 740: Sneaky Stars!
Astronomy Cast Ep. 740: Sneaky Stars! By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 13, 2025. Why stars can't be trusted! If you're an astronomer you depend on acc
Jan 20 2025 30 min
Ep. 739: Drones!
Astronomy Cast Ep. 739: Drones! By Fraser Cain & Dr. Pamela Gay Streamed live January 9, 2025. From little Ingenuity to the future Firefly and all our Earth Science flier
Jan 13 2025 31 min
Chart positions
Where Astronomy Cast ranks today in each Apple Podcasts chart (US, Sep 7, 2026).
A curated, balanced selection of Apple Podcasts reviews.
Fraser Cain and Dr. Pamela Gay got me hooked on podcasts, with this long-running series that instills wonder for all the amazing things in space, with a nice balance of fun banter. Dr. Pamela Gay is the expert scientist, dedicated to citizen science projects in addition to her research. Fraser Cain brings the non-scientist perspective, but with knowledge developed over decades devoted to astronomy journalism. They are both dedicated to science outreach, which I am immensely grateful for, and they are a joy to listen to.
Anonymous Game Dev · Dec 2024
This podcast is amazing. It goes into the “how things work “ in all aspects of astronomy and the universe in a way that makes sense for everyone.
salesman 857 · Apr 2024
I discovered this on a trip with my friend who got tired of my music. We both love Astronomy, so it was an obvious choice to try out a podcast. More recently, I’ve been painting scenes all around this huge room alone at my job redoing a haunted house for this season. I soon got tired of my music, so started listening to this all day every weekday instead. Despite having studied Astronomy some in college, and a decent amount in books, magazines, and websites on my own, I always learn new things, and gain insights into every topic they choose. Even when the topic doesn’t seem like it would interest me as much as others, I always become engaged and end up caring about it a lot more. This is the only podcast I ever want to listen to, and the producers are just great!
Sarah Szabo · Jun 2023
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?
thePeacePirate · Jun 2026
Usually ads don’t bother me, I just skip and move on but this show has more ads in its 30 minutes than multi hour shows I listen to, I’ve never listened to a podcast with more ads than this one.
Posivated · Nov 2025
I’ve been listening to AC since 2008/9 and always looked forward to a new episode. However— due to life—I hadn’t listened in about a year. I decided to make an effort to listen to the Weather on Exoplanets and was taken aback at the hard sell for multiple Patreons at the beginning of the show. More importantly, I was appalled by the ads every five minutes, including the same ad running more than once in one show.
I was used to Dr. Gay doing an ad read in the middle of the show but this is too much. I’ve unsubscribed.
KingDougABowen · Jun 2024
We strive to present a balanced view by showing a diverse range of reviews from Apple Podcasts.
Here you find the Apple Podcasts chart positions of Astronomy Cast, its latest episodes to listen to directly, and reviews from listeners. Rankings are updated daily for the United States.
