| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 5 |  | BBC Inside Science | BBC Radio 4 | |
| 4 | 1 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 5 | 2 | B | Boring History for Sleep | Velvet | |
| 6 | 19 |  | More or Less | BBC Radio 4 | |
| 7 | 5 |  | Science In Action | BBC World Service | |
| 8 | 5 |  | Ologies with Alie Ward | Alie Ward | |
| 9 | 4 |  | Radiolab | WNYC Studios | |
| 10 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 11 | 38 |  | CrowdScience | BBC World Service | |
| 12 | 11 |  | Science Weekly | The Guardian | |
| 13 | 9 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 14 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 15 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 16 | 2 |  | Drilled | Pushkin Industries | |
| 17 | 11 |  | Science Vs | Spotify Studios | |
| 18 | 3 |  | All In The Mind | ABC | |
| 19 | 9 |  | The Psychology Podcast | iHeartPodcasts | |
| 20 | 6 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 21 | 13 |  | Curious Cases | BBC Radio 4 | |
| 22 | 3 |  | Nature Podcast | Springer Nature Limited | |
| 23 | 79 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 24 | 20 |  | Discovery | BBC World Service | |
| 25 | 11 |  | The Quanta Podcast | Quanta Magazine | |
| 26 | 13 |  | The Climate Question | BBC World Service | |
| 27 | 16 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 28 | 13 |  | Unexpected Elements | BBC World Service | |
| 29 | 1 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 30 | 60 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 31 | 69 |  | The Michael Shermer Show | Michael Shermer | |
| 32 | 27 | T | The Al & Juddy Show | Agricom | |
| 33 | 40 |  | Evolutionary Psychology (the podcast) | Dave Pietraszewski & David Pinsof | |
| 34 | 42 |  | The Life Scientific | BBC Radio 4 | |
| 35 | 115 | O | Open Country | BBC Radio 4 | |
| 36 | 16 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 37 | 15 |  | Babbage from The Economist | The Economist | |
| 38 | 63 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 39 | 21 |  | Unexplainable | Vox | |
| 40 | 23 |  | The world, the universe and us | New Scientist | |
| 41 | — |  | Mysterious Universe | 8th Kind | |
| 42 | 21 |  | Cool Worlds Podcast | coolworldslab | |
| 43 | 70 |  | Science Quickly | Scientific American | |
| 44 | 20 |  | Overheard at National Geographic | National Geographic | |
| 45 | 12 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 46 | 14 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 47 | 19 |  | Origin Stories | The Leakey Foundation | |
| 48 | — |  | Better Brain Fitness (a Brainjo Production) | Josh Turknett, MD | |
| 49 | 22 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 50 | — |  | How We're Wired | The Bertarelli Foundation | |
| 51 | — |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 52 | — | L | Les grandes étapes de la vie | France Inter | |
| 53 | — | T | The Death Studies Podcast | The Death Studies Podcast | |
| 54 | 25 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 55 | 3 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 56 | 24 |  | Alive Again | iHeartPodcasts | |
| 57 | 1 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 58 | 27 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 59 | 19 |  | Speaking of Psychology | American Psychological Association | |
| 60 | 12 | O | Our Changing World | RNZ | |
| 61 | 26 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 62 | 24 |  | Let's Learn Everything! | Maximum Fun | |
| 63 | 21 |  | Astrum Space | Astrum | |
| 64 | 27 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 65 | 19 |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 66 | 29 |  | Universe Today Podcast | Fraser Cain | |
| 67 | 78 |  | Every Animal Ever | Dr Cesar Puechmarin, Zach Mander | |
| 68 | 15 |  | The Story Collider | Story Collider, Inc. | |
| 69 | — |  | The Composter Podcast | Jayne Merner | |
| 70 | 6 |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 71 | 115 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 72 | 27 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 73 | — |  | The Archaeology Show | Archaeology Podcast Network | |
| 74 | 27 |  | Ancient Aliens | PodcastOne | |
| 75 | — |  | Rare Earth | BBC Radio 4 | |
| 76 | 25 | T | The 80,000 Hours Podcast on Artificial Intelligence (September 2023) | 80,000 Hours | |
| 77 | — |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 78 | 28 |  | Ask a Spaceman! | Paul M. Sutter | |
| 79 | — |  | P.E.E.P. Podcast | Nicolle Morock | |
| 80 | 26 | R | RCPCH Podcasts | Royal College of Paediatrics and Child Health | |
| 81 | 26 | A | All Around Science | All Around Science | |
| 82 | — |  | State of Seed | Foreign Policy | |
| 83 | — |  | Climate Curious | TEDxLondon | |
| 84 | 28 |  | Believing the Bizarre: Paranormal Conspiracies & Myths | Tyler and Charlie | |
| 85 | 47 |  | The Science Show | ABC | |
| 86 | 29 |  | The Social-Engineer Podcast | Social-Engineer, LLC | |
| 87 | 1 |  | Scotland Outdoors | BBC Radio Scotland | |
| 88 | 25 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 89 | 17 |  | Backwoods Bigfoot Stories | Backwoods Bigfoot Stories-Bigfoot Encounters | |
| 90 | 28 |  | Dr Karl Podcast | triplej | |
| 91 | 26 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 92 | 18 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 93 | 26 |  | Blurry Creatures | Blurry Creatures | |
| 94 | 33 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 95 | 25 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 96 | 30 |  | Diet Doctor Podcast | dietdoctorpodcast | |
| 97 | 28 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 98 | 21 |  | Unbiased Science | @unbiasedscipod | |
| 99 | 28 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 100 | 32 |  | The Common Descent Podcast | Common Descent | |
