| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | — |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 2 |  | Curious Cases | BBC Radio 4 | |
| 4 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 5 | 1 | B | Boring History for Sleep | Velvet | |
| 7 | 4 |  | More or Less | BBC Radio 4 | |
| 9 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 9 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 9 | 1 |  | Operation Night Cat | New Hampshire Public Radio | |
| 11 | 7 |  | Science Vs | Spotify Studios | |
| 11 | 1 |  | All In The Mind | ABC | |
| 12 | — |  | CrowdScience | BBC World Service | |
| 13 | — |  | BBC Inside Science | BBC Radio 4 | |
| 14 | 2 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 16 | 6 |  | Science Weekly | The Guardian | |
| 17 | 4 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 17 | 24 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 18 | 6 |  | The Michael Shermer Show | Michael Shermer | |
| 18 | 2 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 18 | 2 |  | Unexplainable | Vox | |
| 19 | 20 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 19 | — | E | EcoFarm Aotearoa | Ewan Campbell with co-host Stephen Brunton | |
| 20 | 3 | O | Our Changing World | RNZ | |
| 21 | 6 |  | Unexpected Elements | BBC World Service | |
| 21 | 1 |  | Discovery | BBC World Service | |
| 22 | 8 |  | Universe Today Podcast | Fraser Cain | |
| 22 | — |  | The Psychology Podcast | iHeartPodcasts | |
| 23 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 23 | 18 |  | The Threshold | Foreign Policy | |
| 23 | 2 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 23 | 5 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 26 | 5 |  | The world, the universe and us | New Scientist | |
| 29 | 10 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 29 | 2 |  | Skeptoid | Brian Dunning | |
| 29 | 5 |  | Scotland Outdoors | BBC Radio Scotland | |
| 29 | 7 |  | The Science Show | ABC | |
| 30 | 2 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 30 | 19 | K | Kākāpō Files II | RNZ | |
| 31 | 19 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 32 | 75 |  | Babbage from The Economist | The Economist | |
| 32 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 33 | 4 |  | Overshoot: Navigating a world beyond 1.5°C | Planet B Productions | |
| 33 | — |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 35 | — |  | This Week in Space (Audio) | TWiT | |
| 35 | 119 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 37 | — |  | Today's discussion on unraveling BPC 157 Peptide | Infinity Peptides | |
| 37 | 2 |  | Ask a Spaceman! | Paul M. Sutter | |
| 38 | — | P | Paramedicine.com | Marc and Sonja | |
| 38 | — | R | Ri Science Podcast | The Royal Institution | |
| 38 | 7 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 39 | — | M | Modern Spirit Podcast | Joe Tafur | |
| 40 | — |  | Brady Heywood Podcast | Sean Brady | |
| 40 | — | I | International Journal of Paramedicine | International Journal of Paramedicine and NEMSMA | |
| 42 | — |  | American Journal of Ophthalmology Podcasts Collection | Various | |
| 42 | 12 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 42 | 7 |  | Overheard at National Geographic | National Geographic | |
| 42 | 55 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 44 | 9 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 44 | — | S | Sleepy Science Documentary | ScatterBrained Professor | |
| 44 | — |  | Geology Bites | Oliver Strimpel | |
| 45 | 22 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 45 | — |  | Deep Dive: Space Mysteries Unveiled | Graviton Space Facts | |
| 47 | — |  | The Center for Medical Simulation | Center for Medical Simulation | |
| 47 | 41 | Q | Qualitative Research Methods for Everyone Podcast | Policy Press | |
| 47 | 1 |  | Drilled | Pushkin Industries | |
| 48 | 18 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 49 | 26 |  | Science Friday | Science Friday and WNYC Studios | |
| 49 | — |  | The History of Chemistry | Steve Cohen | |
| 49 | 21 | B | blurbs | Matt Ross | |
| 50 | — | T | The Art of Mathematics | Carol Jacoby | |
| 50 | 10 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 52 | 15 |  | Astrum Space | Astrum | |
| 53 | 15 |  | Dr Karl Podcast | triplej | |
| 53 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 55 | — | N | Nocturnal Worlds | Audiocraft | |
| 55 | 19 | A | Aging Less: The Longevity Science Insights Podcast | Life Management Science Labs | |
| 58 | 10 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 59 | 1 |  | The Feldman Protocol | Dave Feldman | |
| 59 | 20 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 61 | 14 |  | The Science of Birds | Ivan Phillipsen | |
| 62 | 17 | T | The Skeptic Zone | Richard Saunders | |
| 63 | 11 |  | The Backpacker's Guide To Prehistory | David Mountain | |
| 64 | 17 |  | Ancient Aliens | PodcastOne | |
| 65 | — |  | COMPLEXITY | Santa Fe Institute | |
| 65 | 16 |  | The Climate Question | BBC World Service | |
| 66 | 8 |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 67 | 21 |  | Nature Podcast | Springer Nature Limited | |
| 68 | 8 | S | scigest - Bioeconomy Science Institute podcasts | New Zealand Institute for Bioeconomy Science Limited | |
| 69 | — | L | Lab Notes | Lab Notes | |
| 69 | 4 |  | Species | mackenmurphy.org | |
| 70 | 18 |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 71 | — | F | Functionally Speaking | Daniel J. Moran, Ph.D., BCBA | |
| 71 | 18 |  | Naturebang | BBC Radio 4 | |
| 72 | — | H | Human Behavioral Biology | Robert Sapolsky | |
| 73 | 18 | R | RehabCast: The Rehabilitation Medicine Update | RehabCast: The Rehabilitation Medicine Update | |
| 74 | 18 | M | Modern Physics: Quantum Mechanics (Winter 2012) | Leonard Susskind | |
| 75 | 9 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 75 | 33 |  | Ask MIT Climate | MIT Climate Project | |
