| 1 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 12 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 2 |  | Curious Cases | BBC Radio 4 | |
| 4 | 1 |  | Radiolab | WNYC Studios | |
| 5 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | — |  | Science Vs | Spotify Studios | |
| 8 | 2 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 9 | 3 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 10 | 3 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 11 | 7 |  | BBC Inside Science | BBC Radio 4 | |
| 12 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 13 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 14 | 1 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 15 | 7 |  | More or Less | BBC Radio 4 | |
| 16 | 7 |  | All In The Mind | ABC | |
| 17 | 5 |  | The Psychology Podcast | iHeartPodcasts | |
| 18 | 13 |  | Blurry Creatures | Blurry Creatures | |
| 19 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 20 | 4 |  | Unexplainable | Vox | |
| 21 | 10 |  | Science Weekly | The Guardian | |
| 22 | 26 |  | Invisibilia | NPR | |
| 23 | 4 |  | Discovery | BBC World Service | |
| 24 | 1 |  | Ancient Aliens | PodcastOne | |
| 25 | 4 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 26 | 7 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 27 | 20 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 28 | 5 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 29 | 61 |  | That UFO Podcast | That UFO Podcast | |
| 30 | 10 |  | The world, the universe and us | New Scientist | |
| 31 | 74 |  | Unexpected Elements | BBC World Service | |
| 32 | 81 |  | Science Quickly | Scientific American | |
| 33 | 12 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 34 | 53 | B | Best Medicine | BBC Radio 4 | |
| 35 | 74 |  | MinuteEarth | Minute Earth | |
| 36 | 4 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 37 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 38 | 143 | M | Mind Brew | Jacqui Maguire | |
| 39 | 75 |  | The Climate Question | BBC World Service | |
| 40 | 77 |  | Robinson's Podcast | Robinson Erhardt | |
| 41 | 119 |  | Main Engine Cut Off | Anthony Colangelo | |
| 42 | 105 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 43 | 16 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 44 | 131 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 45 | 9 | O | Our Changing World | RNZ | |
| 46 | 149 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 47 | — |  | Regenerative Agriculture Podcast | John Kempf | |
| 48 | 9 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 49 | — | T | The Planet Earth Podcast | BBC Radio 4 | |
| 50 | 15 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 51 | 25 |  | Rare Earth | BBC Radio 4 | |
| 52 | 19 |  | Universe Today Podcast | Fraser Cain | |
| 53 | 21 |  | The Life Scientific | BBC Radio 4 | |
| 54 | 26 |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 55 | — | R | Rebel Economics with Dr. Steve Keen | Dr. Steve Keen | |
| 56 | — | J | Jon Richardson and the Futurenauts | Keep It Light Media | |
| 57 | — | M | Master One Thing - Rapamycin Longevity Series | Krister Kauppi | |
| 58 | — |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 59 | — |  | The Black Vault Radio w/ John Greenewald, Jr. | John Greenewald, Jr. | |
| 60 | — | 泛 | 泛泛泛科學之思想實驗室 | PanSci | |
| 61 | 4 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 62 | — |  | Living Planet | DW | |
| 63 | — |  | Science unscripted | DW | |
| 64 | — | E | Equine Veterinary Education Podcast | Unknown | |
| 65 | — | T | The Space Show | Dr David Livingston | |
| 66 | — | T | The Structural Engineering Podcast | Zach and Max | |
| 67 | — | M | Many Minds | Kensy Cooperrider – Diverse Intelligences Summer Institute | |
| 68 | — | S | Sexual and Reproductive Health Matters Podcast | Sexual and Reproductive Health Matters (SRHM) | |
| 69 | — |  | Beyond the Ice | British Antarctic Survey | |
| 70 | — | R | Radio Salzburg Blickwinkel | ORF Radio Salzburg | |
| 71 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 72 | 28 |  | Science In Action | BBC World Service | |
| 73 | 3 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 74 | 40 |  | Spacepod | Carrie Nugent | |
| 75 | 8 |  | Short Wave | NPR | |
| 76 | 34 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 77 | 39 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 78 | 14 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 79 | 38 |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 80 | 10 |  | SciShow Tangents | Complexly | |
| 81 | 27 | N | New Books in Anthropology | New Books Network | |
| 82 | 39 |  | This Week in Cardiology | Medscape | |
| 83 | 23 | S | So You Want to Be a Marine Biologist | K. G. Muzia | |
| 84 | 34 | N | New Books in Psychology | Marshall Poe | |
| 85 | 40 |  | New Books in Psychoanalysis | Marshall Poe | |
| 86 | 40 | R | R2Kast - People in Food and Farming/All In | Wallace Currie | |
| 87 | 36 |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 88 | 33 | N | New Books in Gender | New Books Network | |
| 89 | 9 |  | Ask a Spaceman! | Paul M. Sutter | |
| 90 | 38 | T | The Animal Sensemaker | The Observer | |
| 91 | 23 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 92 | 31 | N | New Books in Sociology | New Books Network | |
| 93 | 44 | T | The Skeptic Zone | Richard Saunders | |
| 94 | 41 | B | Branch Out | Botanic Gardens of Sydney | |
| 95 | 39 |  | The Center for Medical Simulation | Center for Medical Simulation | |
| 96 | 39 | N | New Books in Political Science | New Books Network | |
| 97 | 39 | N | New Books in Neuroscience | New Books Network | |
| 98 | 39 | N | New Books in Science, Technology, and Society | New Books Network | |
| 99 | 37 | H | Hauraki Gulf Kōrero | Alex Rogers | |
| 100 | 37 |  | The Orthogonal Bet | Lux Capital | |
