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2.2M to 6.9M🎙 ~2x weekly·672 episodes·Last published today - Monthly Reach
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1.8M to 5.5M
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From 11 epsHosts
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Recent episodes
Ep. 797: Summer in Space
Jun 15, 2026
Unknown duration
Ep. 796: Oceans & Organics on Mars
Jun 8, 2026
Unknown duration
Ep. 795: Expanse Science
Jun 1, 2026
Unknown duration
Ep. 794: Stargate Science
May 18, 2026
Unknown duration
Ep. 793: Star Trek Science
May 11, 2026
Unknown duration
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| Date | Episode | Topics | Guests | Brands | Places | Keywords | Sponsor | Length | |
|---|---|---|---|---|---|---|---|---|---|
| 6/15/26 | ![]() 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're not here doesn't mean space stops existing and doing things. Today, let's give a preview of the big events due to happen in space this summer so you can prepare yourself and make sure you don't miss a thing! From meteors to moon landings and more, join Fraser and Pamela as the look at what you can enjoy this summer, after we go to hiatus in July. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, Burry Gowen, David, David Rossetter, Ed, Eric Lee, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Joe McTee, Michael Purcell, Sergey Manouilov, Siggi Kemmler | — | ||||||
| 6/8/26 | ![]() 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 it used to be warmer & wetter. with seas & oceans that covered large parts of its surface. With the additional findings of the chemicals for life, the search for life on Mars is getting pretty interesting! New results from Perseverance and Curiosity describe a past Mars with complex chemistry and water. But did it have life? Background image credit: Kevin Gill This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, Burry Gowen, David, David Rossetter, Ed, Eric Lee, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Joe McTee, Michael Purcell, Sergey Manouilov, Siggi Kemmler | — | ||||||
| 6/1/26 | ![]() 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 this week we will tackle "The Expanse". Now we've got fusion drives, Proto-matter, g-forces! Listen up, belta lawda! Let's look at the science of our own possible (with a side of aliens) future. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, Burry Gowen, David, David Rossetter, Ed, Eric Lee, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Joe McTee, Michael Purcell, Sergey Manouilov, Siggi Kemmler | — | ||||||
| 5/18/26 | ![]() 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, worm holes, mind parasites and self-replicating bots. There's a lot to talk about! This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, Burry Gowen, David, David Rossetter, Ed, Eric Lee, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Joe McTee, Michael Purcell, Sergey Manouilov, Siggi Kemmler | — | ||||||
| 5/11/26 | ![]() 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 Wars last week, this week tackle Star Trek. From transporters to warp drives, from phasers to photon torpedos. Let's tackle what Star Trek gets right and wrong about science. Let's look at the science of our galaxy, some day far in the future. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, Burry Gowen, David, David Rossetter, Ed, Eric Lee, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Joe McTee, Michael Purcell, Sergey Manouilov, Siggi Kemmler | — | ||||||
| 5/4/26 | ![]() Ep. 792: Star Wars Science✨ | Star Warsscience+4 | — | — | — | Star Warsscience+5 | — | 40m 26s | |
| 4/27/26 | ![]() Ep. 791: Chang'e Sample Return✨ | Chang'e sample returnChinese lunar missions+4 | — | Chang'eChinese space program | — | Chang'esample return+5 | — | 33m 15s | |
| 4/20/26 | ![]() Ep. 790: Meteorites From Other Worlds✨ | meteoritesspace rocks+3 | — | — | — | meteoritesMoon+5 | — | 33m 33s | |
| 4/6/26 | ![]() Ep. 789: What Happens When a Planet's Star Dies✨ | stellar evolutionred giant+3 | — | — | — | star deathplanetary systems+3 | — | 29m 14s | |
| 3/30/26 | ![]() Ep. 788: Life's Molecules Form in Space✨ | life's moleculesorigin of life+4 | — | — | — | life moleculesspace+5 | PatreonAstronomyCast | 32m 27s | |
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| 3/23/26 | ![]() Ep. 787: Evolved Stars (They're not dead yet!)✨ | evolved starsstellar evolution+4 | — | NASA | — | evolved starsstellar evolution+5 | — | 30m 30s | |
| 3/16/26 | ![]() Ep. 786: Wolf-Rayet Stars✨ | Wolf-Rayet starssupernovae+3 | — | NASAESA+4 | — | Wolf-Rayet starssupernova+3 | — | 34m 28s | |
| 3/9/26 | ![]() Ep. 785: Magnetars✨ | magnetarsneutron stars+4 | — | Astronomy Cast | — | magnetarsneutron stars+4 | — | 29m 56s | |
| 3/2/26 | ![]() Ep. 784: Pulsar-Powered Science✨ | pulsarsgravitational waves+3 | — | NASACXC+2 | — | pulsarsgravitational waves+3 | — | 33m 42s | |
| 2/23/26 | ![]() Ep. 783: Cataclysmic Variable Stars✨ | cataclysmic variable starsbinary star systems+5 | — | NASACXC | — | cataclysmic variable starswhite dwarf+5 | PatreonAstronomyCast | 30m 49s | |
| 2/16/26 | ![]() Ep. 782: Luminous Fast Blue Optical Transients✨ | Luminous Fast Blue Optical Transientsastronomy+4 | — | NASAESA+1 | — | Luminous Fast Blue Optical Transientssupernovas+5 | — | 27m 57s | |
| 2/9/26 | ![]() Ep. 781: Awakening Black Holes | Astronomy Cast Ep. 781: Awakening Black Holes By Fraser Cain & Dr. Pamela Gay Streamed live on Feb 2, 2026. One long standing mystery in astronomy were the quasars. Incomprehensible energy blasting out of a point-like source, billions of light years away. We now know these are actively feeding supermassive black holes, which can turn off and on in a startlingly short period of time. Today: When black holes awaken! Our Universe is filled with sleeping monsters. And sometimes, whether we want it or not, they wake up hungry. In this episode, we take a look at the science behind how and why black holes of all sizes can go from nothing to the triggers of massive high-energy power release. 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 Image credit: LOFAR/Pan-STARRS/S. Kumari et al. | — | ||||||
| 2/2/26 | ![]() Ep. 780: When Asteroids & Comets Attack! | Astronomy Cast Ep. 780: When Asteroids & Comets Attack! By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 26, 2026. We live in a cosmic shooting gallery. It's not a matter of "if" but "when"! Dinosaurs, blah, blah, blah. You know the drill. But seriously, folks, it's raining rocks & ice out there! How seriously should we take it? What happens when a variety of different objects hit the Earth? Different kinds of objects affect Earth very differently when they impact. Let's discuss what makes an impactor more or less dangerous. 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 | — | ||||||
| 1/19/26 | ![]() Ep. 779: Milankovitch Cycles | Astronomy Cast Ep. 779: Milankovitch Cycles By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 12, 2026. Humans live short lives, and from our perspective the seasons are something that come and go with perfect regularity. But astronomers know the terrible truth! And that there are cycles that slowly shift over tens of thousands of years, shifting the cycles and the Earth's climate. Today we'll talk about the Milankovich Cycles! The Earth's orbit, tilt, and other physical attributes aren't quite as constant as you might think! Come learn how long-term changes do and don't affect our climate. 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 | — | ||||||
| 1/12/26 | ![]() 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! | — | ||||||
| 1/5/26 | ![]() Ep. 777: The Eddington Limit | Astronomy Cast Ep. 777: The Eddington Limit By Fraser Cain & Dr. Pamela Gay Streamed live on Dec 29, 2025. How big can a star get? This is a calculation made by one of the original pioneers of modern astronomy, Sir Arthur Eddington. And it's named after him, the Eddington Limit. Now, astronomers are finding examples of giant black holes early in the Universe, calling into question some of Eddington's assumptions. Let's explore this fascinating concept! Why are stars sphere-ish? Why do blackholes not eat everything? Why do pulsating stars pulsate? It all comes down to work done by Eddington at the beginning of the last century, and today we're going to look back at Eddington's work and all its applications in modern Astronomy. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, BogieNet, Brian Cagle, Burry Gowen, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael Purcell, Sergey Manouilov, Siggi Kemmler, Sérgio Sancevero | — | ||||||
| 12/29/25 | ![]() Ep. 776: The Matter - Antimatter Dichotomy | Astronomy Cast Ep. 776: The Matter - Antimatter Dichotomy By Fraser Cain & Dr. Pamela Gay Streamed live on Dec 22, 2025. Shortly after the big bang there were almost exactly the same amounts of matter and antimatter in the Universe, but there was just enough of a difference that we live in a matter-dominated Universe. But it didn't have to be that way! Explaining this mystery has been one of the great mysteries in astronomy, and today we'll see if there's been any progress! Why is the Universe the way it is? Specifically, why is it made mostly of matter? This is the question we'll look at today! This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, BogieNet, Brian Cagle, Burry Gowen, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael Purcell, Sergey Manouilov, Siggi Kemmler, Sérgio Sancevero | — | ||||||
| 12/22/25 | ![]() 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 a problem. It's cold & dark, but it can do a very rare trick, releasing a photon in a very specific wavelength, known as the 21 centimeter line. And thanks to this wavelength astronomers have mapped out star forming regions across the Milky Way, the Universe and into the Dark Ages! This forbidden transition of Hydrogen has led to the mapping of galaxy rotation, a cool classroom application of quantum mechanics, and weirdly no Nobel prize. In this episode, Fraser and Pamela take a look at this line's out-of-proportion awesomeness! This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, BogieNet, Brian Cagle, Burry Gowen, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael Purcell, Sergey Manouilov, Siggi Kemmler, Sérgio Sancevero | — | ||||||
| 12/8/25 | ![]() Ep. 774: How Does Bad Science Happen? | Astronomy Cast Ep. 774: How Does Bad Science Happen? By Fraser Cain & Dr. Pamela Gay Streamed live on Nov 8, 2025. Scientific expertise is under attack on all fronts with concerns coming from politicians and the public. While most of this is unwarranted and politically motivated, there can be germ of truth. Bad science does happen, but how? How is it that papers that very few believe still make it through peer review and to publication? Why do professors at prominent universities get quoted saying things that seem to be fiction? In this episode, we consider the case for letting potentially impossible things make it to publication. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, BogieNet, Brian Cagle, Burry Gowen, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael Purcell, Sergey Manouilov, Siggi Kemmler, Sérgio Sancevero | — | ||||||
| 12/1/25 | ![]() Ep. 773: What Would You Do With $1 Billion For Astronomy? | Astronomy Cast Ep. 773: What Would You Do With $1 Billion For Astronomy? By Fraser Cain & Dr. Pamela Gay Streamed live on Nov 9, 2025. We are powerless fans of space exploration. But what if some fool gave us the authority and funding to make our space dreams a reality? Someone asked us what we'd do with a billion dollars. What missions? Which telescopes? But what if we had more? 100 Billion! A trillion! All the monies! You keep asking, and this week we answer you! Come hear what Fraser and Pamela would do if they were given complete control over $1billion that had to be used for astronomy. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, BogieNet, Brian Cagle, Burry Gowen, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael Purcell, Sergey Manouilov, Siggi Kemmler, Sérgio Sancevero | — | ||||||
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