The 19 Best Outer Space Podcasts (2026)

StarTalk Radio is astrophysicist Neil deGrasse Tyson's long-running effort to sneak real science into pop culture, and it works almost embarrassingly well. Each episode pairs Tyson with a comic co-host (Chuck Nice and Matt Kirshen are regulars) and a guest who might be a Nobel laureate one week and a rapper, chef, or action movie director the next. The conversations range from black holes and dark matter to the physics of football, the neuroscience of fear, and whether we're actually living in a simulation.

What makes the show stick is Tyson's refusal to water anything down. He'll cheerfully correct a celebrity guest mid-sentence, then use the correction as a jumping-off point into something genuinely fascinating about the cosmos. The comedians keep him honest, pricking any balloon of academic pomp with a well-timed joke, which means you end up laughing your way through concepts that would feel punishing in a textbook. Recurring segments like Cosmic Queries let listeners submit the questions, and Tyson answers with the same curiosity he brings to his day job running the Hayden Planetarium.

Episodes run around 50 minutes and usually end with a feeling that the universe got a little less confusing and a lot more interesting. For anyone who loved Carl Sagan's Cosmos and wants that same mix of wonder and rigor in podcast form, StarTalk is essentially the modern answer, and the back catalog is deep enough to keep you busy for months.

Running since 2006, Astronomy Cast is one of those rare podcasts that actually gets better with age. Fraser Cain, the publisher of Universe Today, pairs up with Dr. Pamela Gay, an astronomer at the Planetary Science Institute, and they just talk through space topics like two old friends at a particularly nerdy dinner party. Each week they pick a subject—luminous fast blue optical transients, say, or the lifecycle of stars—and spend about 30 to 40 minutes breaking it down without dumbing it down. Fraser asks the questions a curious non-scientist would ask, and Pamela answers with the precision of someone who has published actual research papers on the topic. The show earned a 4.8 rating from nearly 3,000 reviews, which is pretty telling. Over 780 episodes in, they still manage to find fresh angles on subjects they covered a decade ago because, well, science keeps moving forward. Their Patreon-supported model means the show stays ad-light, though some listeners have noted the occasional sponsor read. The episodes feel like attending a really good college lecture, except nobody is grading you and you can listen in your pajamas.

The Planetary Society has been championing space exploration since Carl Sagan co-founded it in 1980, and Planetary Radio carries that torch with over 1,300 weekly episodes. Host Sarah Al-Ahmed leads a rotating cast that includes Bill Nye (yes, the Science Guy), Bruce Betts, and veteran host Mat Kaplan. The show covers everything from Mars rover updates to the politics of NASA funding, and it does so with a warmth that feels genuinely passionate rather than performative. Each episode runs 45 minutes to an hour, typically featuring interviews with working scientists, mission engineers, and astronauts. The recurring "What’s Up" segment with Bruce Betts is a highlight—he walks through upcoming night sky events and tosses out space trivia that will make you the most interesting person at any party. There is also a monthly Space Policy Edition for listeners who care about the budget battles and legislative wrangling that actually determine which missions get built. With a 4.8 rating from over 1,200 reviews, this podcast has proven it can keep space enthusiasts coming back week after week for over two decades. It strikes a nice balance between accessible enough for newcomers and substantive enough for people who already know their perihelion from their aphelion.

This is NASA’s official podcast straight out of Johnson Space Center in Houston, and it sounds exactly like you’d hope—authoritative but not stuffy. Host Gary Jordan sits down weekly with astronauts, engineers, and flight controllers who are literally building the future of human spaceflight. Over 415 episodes, the show has covered everything from the nuts and bolts of spacewalk procedures to the emotional reality of spending months on the International Space Station. Recent episodes have focused heavily on the Artemis II moon mission preparations and the CHAPEA Mars analog habitat experiments, giving you a front-row seat to missions while they are still being planned. Episodes range from 25 minutes to over an hour, depending on how much the guest has to say (and NASA engineers tend to have a lot to say). The production quality is exactly what you would expect from an agency that broadcasts rocket launches—clean audio, well-structured conversations, no filler. With a 4.7 rating and over 1,200 reviews, it has earned a loyal following among people who want their space news from the source rather than filtered through media coverage.

NASA has a podcast, and it is genuinely great. Hosted by Padi Boyd and Jacob Pinter, the show brings you face-to-face with the people who build rockets, study distant galaxies, and prepare astronauts for missions to the Moon. Now in its eleventh season with 95 episodes under its belt, the show has settled into a rhythm that works really well — each season focuses on a theme (the current one is all about Artemis II and the return to lunar exploration), and episodes run about 30 to 50 minutes.

What sets this apart from other science podcasts is the access. You are hearing directly from mission controllers, astronauts suiting up for spaceflight, and engineers who have spent years solving problems most of us never knew existed. The production quality is polished without feeling sterile, and Boyd and Pinter have an easy chemistry that keeps things moving.

The show earned a solid 4.5-star rating from nearly 900 listeners, which feels right. It is informative without being dry, detailed without losing you in jargon. Episodes cover everything from the physics of re-entry to what it is actually like training for a lunar mission. Some episodes are compact four-minute previews, while others stretch past 50 minutes for deep reporting.

If you have ever looked up at the night sky and wondered what it takes to actually get up there, this is the podcast that answers that question with people who do it for a living. Free to listen, with the full NASA podcast catalog available at nasa.gov.

Fraser Cain runs Universe Today, one of the most respected space news websites on the internet, and this podcast is basically the audio extension of that same mission. With over 1,500 episodes and daily updates, it is absurdly prolific. The format rotates between Space Bites (quick news roundups of recent discoveries), Q&A sessions where Fraser answers listener questions, and longer interview episodes with working astronomers and astrophysicists. What sets it apart is that it is completely ad-free—supported entirely through Patreon—so you get pure content without interruption. Fraser has a calm, methodical delivery that pairs well with complex topics like exoplanet atmospheres or gravitational wave detection. He rarely oversimplifies, but he also does not assume you have a PhD. The show has a 4.7 rating from over 500 reviews, with listeners consistently praising the depth and the lack of ads. Individual episodes tend to be relatively short, typically 15 to 30 minutes, which makes it easy to stack a few of them in a row. If you want to stay genuinely current on what is happening in astronomy and space science, this is probably the most efficient way to do it.

Pale Blue Pod bills itself as an astronomy podcast for people who are overwhelmed by the universe, and honestly that is most of us. Dr. Moiya McTier, an astrophysicist with a genuinely funny bone, teams up with Connie Gibbs (known as ConStar), and together they make the cosmos feel approachable without ever being condescending. New episodes drop every Monday, and the format bounces between topic deep-dives, guest interviews, movie reviews through an astronomical lens, and the occasional birthday special. With about 175 episodes since 2022, the show has built momentum quickly. The chemistry between Moiya and Connie is the real draw here—their back-and-forth has the energy of two friends who happen to be really smart, not two smart people trying to be friends. Topics range from binary star research to the surprisingly political history of how we name celestial objects. The explicit rating is earned through casual language rather than shocking content. At 4.5 stars with 173 ratings, it is still growing its audience but the reviews are enthusiastic. This is a great entry point for anyone who finds traditional science podcasts a bit too dry or lecture-like, and it works especially well for younger listeners who want their space knowledge served with personality.

Backed by the Royal Astronomical Society—an institution that has been around since 1820—The Supermassive Podcast carries some serious credentials. Science journalist Izzie Clarke and astrophysicist Dr. Becky Smethurst host biweekly episodes that blend current research with historical gems from the RAS archives. Dr. Robert Massey pops in with stargazing tips, which is a nice practical touch for listeners who actually want to go outside and look up. The show covers topics like gravitational physics, multiverse theory, and temporal mechanics, but presents them in a way that feels conversational rather than academic. Over 108 episodes since 2020, it has earned a 4.6 rating from 316 reviews. The British perspective is refreshing if your podcast diet is heavily American—there is a slightly different emphasis on international collaborations and ESA missions alongside NASA coverage. Produced by Boffin Media and Richard Hollingham, the audio quality is consistently high. Members of The Supermassive Club get ad-free listening and exclusive forums, but the free version is perfectly complete on its own. This one is ideal for listeners who want academic rigor wrapped in genuinely accessible conversation.

Anthony Colangelo runs one of the sharpest spaceflight analysis shows out there. Main Engine Cut Off (MECO) focuses on the business and policy side of space—launch industry economics, NASA budget decisions, commercial crew contracts, and the strategic moves of companies like SpaceX, Blue Origin, and Rocket Lab. With 323 episodes since 2016 and a near-perfect 4.9 rating from 284 reviews, it has earned a reputation for thoughtful, measured takes in a media environment that often sensationalizes rocket launches. Anthony does his homework. He reads the government reports, parses the contract awards, and connects dots that most space journalists miss. Episodes are biweekly and typically feature a mix of solo analysis and guest interviews with industry insiders. The companion show, MECO Headlines, handles the quick news hits. His delivery is calm and deliberate—no shouting, no hype, just careful reasoning about where the space industry is heading and why. Listeners regularly call it the best space policy podcast available, and it is hard to argue with that. If you already know the basics and want to understand the forces shaping which missions actually get funded and built, MECO fills a niche that almost nobody else covers this well.

Rod Pyle, editor-in-chief of Ad Astra magazine, and Tariq Malik, managing editor of Space.com, bring genuine journalism chops to this weekly space roundup. Every Friday they sit down for about an hour to recap the week in space news, interview expert guests, and occasionally argue about where the industry is heading. Rod opens each episode with a space joke—some land better than others—which sets a relaxed tone for what follows. Part of the TWiT network, the show benefits from solid production infrastructure and a built-in audience of tech-savvy listeners. Nearly 200 episodes in, it has maintained a 4.6 rating from 160 reviews. The guest list tends toward the impressive side: mission scientists, astronauts, and industry executives who bring firsthand knowledge rather than just opinions. The show is free with ads, though Club TWiT members can go ad-free for 10 dollars a month. Some listeners have noted occasional political tangents, but the core content stays firmly focused on launches, missions, and discoveries. It works best as a Friday wrap-up for people who want one reliable show to catch everything that happened in space that week.

Stuart Gary spent 19 years covering science on Australian public radio before launching SpaceTime as a podcast, and that broadcast experience shows. Each weekly episode packs multiple astronomy and space news stories into a tight, well-produced package. With over 1,200 episodes, SpaceTime has one of the deepest back catalogs in the space podcast world. Stuart brings in recurring contributors including Alex Zaharov-Reutt for tech segments and Tim Mendham from Australian Skeptics, plus rotating academics from universities like Sydney and Colorado Boulder. The show has a 4.2 rating from 297 reviews—the lower score seems partly tied to listener opinions about commercial breaks and Stuart’s distinctive delivery style, which you will either find authoritative or a bit much. A premium tier is available at five dollars a month for those who want ad-free episodes. The Australian perspective gives the show an angle you will not find in most American-dominated space media, with more coverage of Southern Hemisphere observatories and international space programs. Episodes cover a broad spectrum from gravitational wave discoveries to satellite policy, and the journalistic approach means stories are sourced and fact-checked rather than speculative. Solid choice for listeners who want hard news delivered efficiently.

Two friends, two beers, and a casual conversation about space. That’s the tagline, and the show genuinely delivers on that promise. Jake Robins and Anthony Colangelo (who also hosts Main Engine Cut Off) turn space industry talk into something that feels like overhearing a great bar conversation between two very well-informed people. The vibe is relaxed and explicitly rated—they swear occasionally and let conversations wander in productive directions. With 234 episodes since 2017 and a 4.8 rating from 84 reviews, the audience is devoted if not massive. Episodes typically run 60 to 90 minutes and feature guests from across the space industry, from engineers to entrepreneurs to journalists. Recent episodes have tackled everything from the so-called 40 percent rule in aerospace to SpaceX’s latest Starship developments. The show works as a complement to more formal space podcasts—it fills the gap between hard news and the kind of opinionated, speculative discussion that makes the space community fun to be part of. If you like your space commentary unfiltered and served at a comfortable pace, Off-Nominal hits a sweet spot that more polished shows often miss.

Michael Annis has been methodically working through the entire history of spaceflight since 2013, and the level of detail is staggering. Starting from the earliest Sputnik missions and working forward chronologically, the show has produced 210 deeply researched episodes that read more like chapters in a comprehensive textbook than casual podcast chatter. The current focus is a multi-part series on the Apollo-Soyuz Test Project, covering training, rendezvous procedures, docking mechanics, and mission aftermath across several episodes. Each installment runs 40 to 50 minutes and is packed with primary source material and firsthand accounts. The podcast holds a remarkable 4.9 rating from 631 reviews, which is almost unheard of for a show this niche. Listeners consistently praise the enthusiasm and thoroughness—several reviews mention the importance of preserving these stories while original mission participants are still alive to tell them. The production is straightforward with no flashy sound design, just careful narration and well-organized research. It moves at a deliberate pace, so this is not the show for quick news updates. But if you want to genuinely understand how we got from theoretical rocketry to walking on the moon, episode by episode, there is nothing else quite like it.

Born out of the 2009 International Year of Astronomy, The 365 Days of Astronomy is a true community project. Managed by Avivah Yamani and edited by Richard Drumm under the Planetary Science Institute umbrella, the show features a rotating cast of voices from across the astronomy world. That means no single host dominates the show. One day you might hear from a professional astronomer discussing solar eclipses, the next from an amateur observer sharing tips on spotting satellites. With about 250 episodes and daily updates, the show covers an enormous range—space debris, black holes, exoplanet detection methods, observational techniques, and more. The format keeps episodes brief, usually well under 30 minutes, which makes them easy to fit into a busy day. The community-driven model gives it a grassroots feel that larger shows cannot replicate. It holds a 4.4 rating from 344 reviews. Some listeners have strong feelings about the intro and outro music, and the quality naturally varies with different contributors, but that variety is also what makes the show interesting. Funded through CosmoQuest on Patreon, it has survived over 15 years by relying on a passionate community rather than a big media company. Perfect for listeners who want diverse perspectives on astronomy from people who genuinely love the subject.

Daniel Whiteson is a particle physicist at CERN who works on the ATLAS experiment at the Large Hadron Collider. His co-host Kelly Weinersmith is a biologist and bestselling author. Together they have this infectious energy about science that makes even the most abstract topics feel approachable. The show started as "Daniel and Jorge Explain the Universe" and has since evolved, but the spirit remains the same: two smart people who genuinely cannot stop geeking out about how the universe works.

The quantum physics episodes here are particularly good because Daniel actually works with particles for a living. When he explains quantum field theory or discusses why the universe minimizes action, he's drawing on daily research experience, not just reading a textbook summary. Episodes cover everything from cosmic rays corrupting computers to the fundamental forces of nature. They drop twice a week and run about an hour, which means there's a massive back catalog of nearly 800 episodes to explore.

With a 4.7-star average from over 2,300 ratings, the show is one of the most popular physics podcasts on any platform. The tone is fun and conversational but never dumbed down. They do listener Q&A episodes regularly, and Daniel's answers to audience questions about quantum mechanics are often the clearest explanations you'll hear anywhere. iHeartPodcasts distributes the show, so it's available on every major platform.

NASA already has Houston We Have a Podcast for the big-picture conversations, but Small Steps, Giant Leaps fills a different niche entirely. This show puts the spotlight on the technical workforce, the engineers and specialists who actually build the hardware and solve the problems that make space missions work. Each episode is a compact 15 to 20 minutes, focused on one person and one topic.

The format works well because the guests are not media-trained spokespeople. They are people like Christine St. Germain, NASA's recovery director, explaining how her team choreographs astronaut retrieval after ocean splashdowns. Or an aerospace engineer walking through how they test thermal protection systems for capsules re-entering the atmosphere. You get a genuine look at the day-to-day problem-solving that happens behind the press conferences and rocket launches.

With 168 episodes released on a semimonthly schedule since 2018, the show has quietly built up a solid archive. It carries a 4.8-star rating on Apple Podcasts, which tracks with how consistently it delivers. The episodes are short enough to fit into a commute but substantive enough to actually teach you something. If you have ever watched a launch and wondered about the hundreds of unglamorous but critical systems that had to work perfectly, this podcast pulls back that curtain.

Broadcasting from Florida's Space Coast, Brenden Byrne has been covering space launches and NASA operations since 2016 for Central Florida Public Media's 90.7 WMFE. His proximity to Kennedy Space Center and Cape Canaveral gives the show a boots-on-the-ground quality that most space podcasts cannot match. When a rocket goes up from the Cape, Byrne is often there to report on it firsthand.

Each weekly episode runs about 25 to 30 minutes and blends news reporting with interviews. Recent coverage includes the Artemis II mission preparations, commercial crew updates, and a surprisingly interesting segment on how NASA research is helping conserve tortoises near launch sites. Byrne pulls in guests from NASA, the University of Central Florida, and the broader space industry, and his public radio background means the interviews are well-structured without feeling overly formal.

The show has released over 200 episodes and maintains a 4.4-star rating from 351 reviews. Listeners particularly appreciate the local angle. While plenty of podcasts cover space news from a desk, Byrne reports from where the rockets actually launch. He also hosts Space on Tap events in the community, which gives the show a connection to its audience that feels genuine. For anyone who wants space news with real journalistic reporting rather than just commentary, this is a strong pick.

The Naked Scientists brand has been a fixture in UK science communication for over two decades, and their astronomy spinoff is one of the strongest entries in the space podcast category. Hosted by Sue Nelson and Richard Hollingham, two veteran science journalists who have covered space exploration for the BBC and other major outlets, the show benefits from hosts who actually know the field rather than just reading press releases.

Episodes land roughly every two weeks and run about an hour each. The format mixes interviews with working astronomers, news roundups, and the occasional field report from places like mission control centers or observatory sites. A recent episode covered the Artemis II mission alongside an interview with TV presenter Dallas Campbell about the cultural significance of space travel. That kind of range, from hard science to broader cultural commentary, keeps episodes from feeling repetitive.

With 228 episodes since 2010 and a 4.6-star rating from 70 reviews on Apple Podcasts, the show has a loyal following. Nelson and Hollingham have a relaxed, slightly dry British rapport that makes the science go down easy. They are not afraid to express skepticism about overblown claims or flag when a new discovery might be less revolutionary than the headlines suggest. If you appreciate space coverage that is informed, measured, and occasionally wry, Naked Astronomy is worth adding to your rotation.

Most space podcasts drop weekly or biweekly, which means big stories can be days old by the time you hear about them. Astronomy Daily solves that problem by publishing every single day. Hosts Anna and Avery promise ten minutes for the universe, and they mostly deliver on that, with episodes running 14 to 20 minutes covering the top space and astronomy stories of the day.

The show has been remarkably consistent, racking up nearly 800 episodes across five seasons. A typical episode might cover a comet approaching visibility, a dark matter research update, and a mission milestone all in one sitting. The hosts keep the pace brisk and the explanations accessible without oversimplifying. They clearly do their homework, pulling from multiple sources rather than just rehashing a single press release.

The daily format means not every episode will be a standout, but that is the trade-off for staying genuinely current. When something major happens, like the Artemis II launch or a new exoplanet discovery, you will hear about it the same day rather than waiting for someone's weekly roundup. The show is part of the Space Nuts podcast network and the Bitesz.com family, with a 4.5-star rating from Apple Podcasts listeners. A premium ad-free tier is available, but the free version is perfectly complete. For space news junkies who want their fix every morning, this fills the gap nicely.