| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 7 |  | Science Weekly | The Guardian | |
| 4 | 1 |  | More or Less | BBC Radio 4 | |
| 5 | 6 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 6 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 3 |  | Radiolab | WNYC Studios | |
| 8 | 1 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 9 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 10 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 11 | 5 | N | Nature Conversations: Dr. Adam Forbes Interviews the Experts | Dr Adam Forbes | |
| 12 | 6 |  | All In The Mind | ABC | |
| 13 | 17 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 14 | 20 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 15 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 16 | 4 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 17 | 58 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 18 | 7 |  | Unexplainable | Vox | |
| 19 | 128 |  | Speaking of Psychology | American Psychological Association | |
| 20 | 6 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 21 | 7 |  | Discovery | BBC World Service | |
| 22 | 147 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 23 | 8 |  | Science Vs | Spotify Studios | |
| 24 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 25 | 23 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 26 | 5 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 27 | 14 |  | Curious Cases | BBC Radio 4 | |
| 28 | — |  | BirdNote Daily | BirdNote | |
| 29 | 12 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 30 | 16 |  | The Psychology Podcast | iHeartPodcasts | |
| 31 | — |  | Going Wild with Dr. Rae Wynn-Grant | PBS Nature | |
| 32 | 38 | O | Open Country | BBC Radio 4 | |
| 33 | 79 |  | The Plodcast | Our Media | |
| 34 | 70 | O | Our Changing World | RNZ | |
| 35 | 16 |  | ScienceStuff | iHeartPodcasts | |
| 36 | 44 |  | Future Ecologies | Future Ecologies | |
| 37 | — |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 38 | 43 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 39 | 61 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 40 | 61 | T | This Natural Life | BBC Radio 4 | |
| 41 | 18 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 42 | 63 | ![Cosmosis [Formerly The UFO Rabbit Hole]](https://is1-ssl.mzstatic.com/image/thumb/Podcasts211/v4/6e/50/4f/6e504f3a-5967-0f9a-1858-77a5f070b7d4/mza_10360255510263335732.jpeg/100x100bb.jpg) | Cosmosis [Formerly The UFO Rabbit Hole] | Kelly Chase & Jay Christopher King | |
| 43 | 6 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 44 | 70 |  | The Life Scientific | BBC Radio 4 | |
| 45 | 63 | N | Nature Track | ABC | |
| 46 | 77 |  | Somewhere in the Skies | SpectreVision Radio | |
| 47 | 107 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 48 | 24 |  | Nature Podcast | Springer Nature Limited | |
| 49 | 27 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 50 | — |  | The Parkinson's Podcast | Davis Phinney Foundation | |
| 51 | — | W | What The Duck?! | ABC | |
| 52 | — | F | Farm Small Farm Smart Daily | The Modern Grower Podcast Network | |
| 53 | 26 |  | The Quanta Podcast | Quanta Magazine | |
| 54 | — |  | The Science of Everything Podcast | James Fodor | |
| 55 | 23 |  | The world, the universe and us | New Scientist | |
| 56 | — |  | Invisibilia | NPR | |
| 57 | 29 |  | Where Inches Matter by Agraforum | Agraforum NZ | |
| 58 | — | S | scigest - Bioeconomy Science Institute podcasts | New Zealand Institute for Bioeconomy Science Limited | |
| 59 | — |  | The Rumen Room Podcasts | cwestwood | |
| 60 | — |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 61 | — |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 62 | 31 | A | A Light On | A Light On | |
| 63 | — |  | The Future of Everything | Stanford Engineering | |
| 64 | 15 |  | Short Wave | NPR | |
| 65 | — | I | Ideas of India | Mercatus Center at George Mason University | |
| 66 | — |  | The Pie: An Economics Podcast | Becker Friedman Institute at UChicago | |
| 67 | — |  | Need To Know | Bryce Zabel | |
| 68 | — |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 69 | — |  | TED Talks Science and Medicine | TED | |
| 70 | — | N | New Books in Environmental Studies | Marshall Poe | |
| 71 | — | 1 | 1202 - The Human Factors Podcast | Barry Kirby C.ErgHF FCIEHF | |
| 72 | — |  | Big Brains | University of Chicago Podcast Network | |
| 73 | — | T | Talking Biotech with Dr. Kevin Folta | Colabra | |
| 74 | — | W | What Makes You Click? | Daniel Mills | |
| 75 | — |  | Cited Podcast | Cited Media | |
| 76 | — | T | The Science of Self | Peter Hollins | |
| 77 | — |  | The Biochar Show | The Biochar Show | |
| 78 | 49 |  | Unexpected Elements | BBC World Service | |
| 79 | 46 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 80 | 44 | B | Blazing the Trail | University of Sydney / Australian Museum / Break Thru Films | |
| 81 | 43 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 82 | 47 |  | Every Animal Ever | Dr Cesar Puechmarin, Zach Mander | |
| 83 | 14 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 84 | 44 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 85 | 43 |  | BBC Inside Science | BBC Radio 4 | |
| 86 | 33 |  | You Are Not So Smart | You Are Not So Smart | |
| 87 | 48 |  | A Life More Wild | Canopy & Stars | |
| 88 | 45 |  | The Michael Shermer Show | Michael Shermer | |
| 89 | 48 | H | How I Wrote This | Brett Gordon and Karen Winterich | |
| 90 | 8 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 91 | 61 |  | That UFO Podcast | That UFO Podcast | |
| 92 | 48 |  | Mind & Life | Mind & Life Institute | |
| 93 | 48 |  | CrowdScience | BBC World Service | |
| 94 | 47 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 95 | 41 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 96 | 38 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 97 | 46 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 98 | 38 |  | The Orthobullets Podcast | Orthobullets | |
| 99 | 49 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 100 | 24 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
