| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | — | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 3 | 4 |  | More or Less | BBC Radio 4 | |
| 4 | 1 |  | Radiolab | WNYC Studios | |
| 5 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 8 | 75 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 9 | 47 |  | Science Weekly | The Guardian | |
| 10 | 3 | L | Love The Bees Podcast | Yvonne Johnston | |
| 11 | 9 |  | Science In Action | BBC World Service | |
| 12 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 13 | — |  | The Casual Birder Podcast | Suzy Buttress | |
| 14 | 9 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 15 | 7 | F | Farming Today | BBC Radio 4 | |
| 16 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 17 | 7 |  | Unexplainable | Vox | |
| 18 | 9 |  | Discovery | BBC World Service | |
| 19 | 61 | A | A Neuroscientist Explains | The Guardian | |
| 20 | 70 |  | Physics World Weekly Podcast | Physics World | |
| 21 | 7 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 22 | 92 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 23 | 94 |  | New Books in Critical Theory | Marshall Poe | |
| 24 | 13 | B | Boring History for Sleep | Velvet | |
| 25 | 103 |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 26 | 60 | C | CountryWide | RTÉ Radio 1 | |
| 27 | 160 |  | The Climate Question | BBC World Service | |
| 28 | 152 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 29 | — |  | Need To Know | Bryce Zabel | |
| 30 | 13 |  | Babbage from The Economist | The Economist | |
| 31 | — |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 32 | — |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 33 | — |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 34 | — | N | National Geographic Česko | Vltava Labe Media | |
| 35 | — | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 36 | — |  | The House of Pod | Kaveh MD | |
| 37 | — | S | Smart Biotech Scientist | Master Bioprocess CMC Development, Biologics Manufacturing & Scale-up, Cell Culture Innovation | David Brühlmann - CMC Development Leader, Biotech C-level Advisor, Business Strategist | |
| 38 | — |  | The Numberphile Podcast | Brady Haran | |
| 39 | — | I | Inquiring Minds | Indre Viskontas | |
| 40 | — | T | The Royal College of Psychiatrists Podcast | RCPsych | |
| 41 | — | T | The Giants Shoulder | Evan McGloughlin | |
| 42 | 24 |  | BBC Inside Science | BBC Radio 4 | |
| 43 | 28 |  | Re:Energise from ESB | ESB | |
| 44 | 18 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 45 | 26 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 46 | 21 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 47 | 51 |  | A Life More Wild | Canopy & Stars | |
| 48 | 27 |  | Rare Earth | BBC Radio 4 | |
| 49 | 16 | B | Best of Natural History Radio | BBC Radio 4 | |
| 50 | 26 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 51 | 23 |  | That UFO Podcast | That UFO Podcast | |
| 52 | 30 |  | Future Ecologies | Future Ecologies | |
| 53 | 23 | I | In Your Nature | By BirdWatch Ireland | |
| 54 | 91 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 55 | 55 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 56 | 29 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 57 | 6 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 58 | 7 | ![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 | |
| 59 | 6 |  | The world, the universe and us | New Scientist | |
| 60 | 29 |  | Bigfoot and Beyond with Cliff and Bobo | Bigfoot and Beyond LLC | |
| 61 | 32 |  | Completely Arbortrary | Completely Arbortrary | |
| 62 | 28 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 63 | 28 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 64 | 32 |  | TED Talks Science and Medicine | TED | |
| 65 | 25 |  | Espacio en blanco | Radio Nacional | |
| 66 | 30 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 67 | 30 |  | Big Picture Science | Big Picture Science | |
| 68 | — |  | Slow Radio | BBC Radio 3 | |
| 69 | 31 |  | The Future of Everything | Stanford Engineering | |
| 70 | 31 | C | Costing the Earth | BBC Radio 4 | |
| 71 | — | H | How I Wrote This | Brett Gordon and Karen Winterich | |
| 72 | 31 |  | The Acres U.S.A. Podcast | Acres U.S.A.® | |
| 73 | — |  | Care More Be Better: A Podcast For Sustainable Social Impact and Regeneration | Corinna Bellizzi | |
| 74 | 32 | T | The Future of Pharma | Samir Gondalia, ISPE Boston | |
| 75 | 32 |  | The ICHE Podcast | The ICHE Podcast | |
| 76 | 32 | T | The Session with Tom Swarbrick | Global | |
| 77 | 32 | E | Elements | BBC World Service | |
| 78 | — | D | De cause à effets, le magazine de l'environnement | France Culture | |
| 79 | 33 | T | The Planet Earth Podcast | BBC Radio 4 | |
| 80 | 33 | T | The Field Guide to Particle Physics | Sean Downes | |
| 81 | 33 | 3 | 39 Ways to Save the Planet | BBC Radio 4 | |
| 82 | 33 | S | Stream Audiobook in Science & Technology, Magazine & Radio | Free Audiobook | |
| 83 | 33 | A | All Access: Med School Admissions | Christian Essman | |
| 84 | 32 |  | BrainStuff | iHeartPodcasts | |
| 85 | 27 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 86 | 83 |  | All In The Mind | ABC | |
| 87 | 25 |  | Astrum Space | Astrum | |
| 88 | 34 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 89 | 34 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 90 | 30 |  | Universe Today Podcast | Fraser Cain | |
| 91 | 34 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 92 | 33 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 93 | 32 | N | Naturefile | RTÉ lyric fm | |
| 94 | 10 |  | The Psychology Podcast | iHeartPodcasts | |
| 95 | 29 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 96 | 23 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 97 | 30 | 4 | 4 The Soil: A Conversation | Eric Scott Bendfeldt | |
| 98 | 33 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 99 | 31 |  | Mythfits | Pionaire Podcasting | |
| 100 | 36 |  | Robinson's Podcast | Robinson Erhardt | |
