| 1 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 2 | 1 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 3 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 3 |  | Curious Cases | BBC Radio 4 | |
| 6 | 4 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 7 | — | C | CountryWide | RTÉ Radio 1 | |
| 8 | 6 |  | More or Less | BBC Radio 4 | |
| 9 | — | F | Futureproof with Jonathan McCrea | Newstalk | |
| 10 | 28 |  | Robinson's Podcast | Robinson Erhardt | |
| 11 | 8 |  | Making Sense with Sam Harris | Sam Harris | |
| 12 | 7 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 13 | 1 |  | Radiolab | WNYC Studios | |
| 14 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 15 | — |  | BrainStuff | iHeartPodcasts | |
| 16 | — | T | The Met Éireann Podcast | Met Éireann | |
| 17 | — | U | Unlocking Bryson's Brain | CBC | |
| 18 | 7 |  | Science Weekly | The Guardian | |
| 19 | 16 |  | The world, the universe and us | New Scientist | |
| 20 | 60 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 21 | 16 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 22 | 54 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 23 | 10 |  | Short Wave | NPR | |
| 24 | 62 |  | Physics World Weekly Podcast | Physics World | |
| 25 | 65 | I | I.A. Café - Enquête au cœur de la recherche sur l’intelligence artificielle | Jean-François Sénéchal, Frédérick Plamondon, David Beauchemin, Ève Gaumond, Sylvain Munger, Shirley Plumerand, Véronique Tremblay et Stéphane Mineo. | |
| 26 | 107 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 27 | 97 | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 28 | 89 |  | Future Ecologies | Future Ecologies | |
| 29 | 115 |  | The Quanta Podcast | Quanta Magazine | |
| 30 | — |  | Radio Naukowe | Radio Naukowe - Karolina Głowacka | |
| 31 | 140 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 32 | — |  | Astrum Space | Astrum | |
| 33 | 16 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 34 | — | T | The Hayseed Scholar Podcast | Brent Steele | |
| 35 | — |  | New Books in Critical Theory | Marshall Poe | |
| 36 | — |  | Cool Worlds Podcast | coolworldslab | |
| 37 | — |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 38 | — | H | Hyde Park Civilizace | Česká televize | |
| 39 | — |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 40 | — | B | Behind the Wild Lens | Jake Willers | |
| 41 | — | D | Data Science Decoded | Mike E | |
| 42 | — |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 43 | — | V | Voices: The EISA Podcast | EISA | |
| 44 | — |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 45 | — |  | Cryptid Creatures | Brian Brock/Todd Stevens | |
| 46 | — | T | The IR thinker | Martin Zubko | |
| 47 | — | J | Journal of Neuro-Ophthalmology - JNO Podcast Series | Unknown | |
| 48 | — | E | Entropy Rising | Jacob and Lucas | |
| 49 | 27 |  | All In The Mind | ABC | |
| 50 | 34 |  | The Life Scientific | BBC Radio 4 | |
| 51 | 32 |  | Unexpected Elements | BBC World Service | |
| 52 | 26 |  | This Week in Virology | Vincent Racaniello | |
| 53 | 32 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 54 | 34 |  | Accidental Gods | Accidental Gods | |
| 55 | 37 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 56 | 3 |  | Science In Action | BBC World Service | |
| 57 | 27 |  | The Psychology Podcast | iHeartPodcasts | |
| 58 | 33 |  | The Plodcast | Our Media | |
| 59 | 36 |  | The Common Descent Podcast | Common Descent | |
| 60 | 36 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 61 | 34 |  | Das Wissen | SWR | SWR | |
| 62 | 4 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 63 | 21 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 64 | 36 |  | Psychedelics Then and Now with Zach Leary | Zach Leary/Psychedelics Today | |
| 65 | 36 |  | My Take On It with Your Angelic Karma® | Your Angelic Karma | |
| 66 | 30 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 67 | 36 |  | Science Friday | Science Friday and WNYC Studios | |
| 68 | 36 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 69 | 36 |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 70 | 36 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 71 | 31 |  | Nephilim Death Squad | TopLobsta Productions | |
| 72 | 22 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 73 | 12 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 74 | 22 |  | The Future of Everything | Stanford Engineering | |
| 75 | 21 | C | Conversation Beneath The Trees | Conversation Beneath The Trees | |
| 76 | 21 |  | Know What You See with Brian Lowery | Brian S. Lowery | |
| 77 | 28 |  | Joint Approach | Musculoskeletal Infection Society/European Bone and Joint Infection Society | |
| 78 | 31 | ' | 'Mind the Kids': an ACAMH podcast | The Association for Child and Adolescent Mental Health | |
| 79 | 40 | F | Farming for Nature | Farming for Nature | |
| 80 | 18 |  | That UFO Podcast | That UFO Podcast | |
| 81 | 40 |  | Better Brain Fitness (a Brainjo Production) | Josh Turknett, MD | |
| 82 | 37 |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 83 | 41 | T | The Skeptic Zone | Richard Saunders | |
| 84 | 41 | L | La lutte enchantée de Cyril Dion | France Inter | |
| 85 | 41 | S | Sound Healing / Sound Bath | Omandala Vietnam | |
| 86 | 40 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 87 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 88 | 40 | S | Sexual and Reproductive Health Matters Podcast | Sexual and Reproductive Health Matters (SRHM) | |
| 89 | 38 | H | Human Behavioral Biology | Robert Sapolsky | |
| 90 | 37 |  | This Week in Neuroscience | Vincent Racaniello | |
| 91 | 35 | T | The GLaD Podcast | The GLaD Podcast | |
| 92 | 35 |  | The Skeptic Podcast | The Skeptic | |
| 93 | 30 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 94 | 34 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 95 | 27 |  | Discovery | BBC World Service | |
| 96 | 32 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 97 | 28 |  | CrowdScience | BBC World Service | |
| 98 | 32 |  | Mind & Life | Mind & Life Institute | |
| 99 | 32 |  | The Climate Question | BBC World Service | |
| 100 | 35 |  | Google DeepMind: The Podcast | Hannah Fry | |
