| 1 | 1 |  | Curious Cases | BBC Radio 4 | |
| 2 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | 141 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 5 | 7 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 6 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | 4 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 9 | 32 |  | Science In Action | BBC World Service | |
| 10 | 7 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 11 | 57 |  | Ask a Spaceman! | Paul M. Sutter | |
| 12 | 3 |  | Overheard at National Geographic | National Geographic | |
| 13 | 9 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 14 | 14 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 15 | 20 |  | Robinson's Podcast | Robinson Erhardt | |
| 16 | 6 |  | Science Weekly | The Guardian | |
| 17 | 6 |  | Ologies with Alie Ward | Alie Ward | |
| 18 | 11 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 19 | 5 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 20 | 1 |  | Radiolab | WNYC Studios | |
| 21 | 8 | N | Naturefile | RTÉ lyric fm | |
| 22 | 8 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 23 | 10 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 24 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 25 | 24 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 26 | 36 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 27 | 24 |  | The world, the universe and us | New Scientist | |
| 28 | 66 |  | Nature Podcast | Springer Nature Limited | |
| 29 | 35 | F | Feet on the Soil | Soil Boy | |
| 30 | 31 |  | The Psychology Podcast | iHeartPodcasts | |
| 31 | 55 | I | In Your Nature | By BirdWatch Ireland | |
| 32 | 16 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 33 | 18 |  | More or Less | BBC Radio 4 | |
| 34 | 2 |  | Unexplainable | Vox | |
| 35 | 12 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 36 | 103 | ![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 | |
| 37 | 15 |  | Short Wave | NPR | |
| 38 | 11 |  | The Life Scientific | BBC Radio 4 | |
| 39 | — | C | Conservation and Science | Tommy's Outdoors | |
| 40 | — |  | The Science of Birds | Ivan Phillipsen | |
| 41 | 123 |  | Somewhere in the Skies | SpectreVision Radio | |
| 42 | 23 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 43 | 115 |  | Speed & Scale | TED | |
| 44 | 26 |  | Science Vs | Spotify Studios | |
| 45 | 70 | T | The Psychology of Criminal and Antisocial Behaviour | WP | |
| 46 | 131 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 47 | 138 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 48 | — |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 49 | 29 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 50 | — | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 51 | — | S | Sleep Science Podcast | Penny Lewis | |
| 52 | — |  | The Optispan Podcast with Matt Kaeberlein | Optispan | |
| 53 | — |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 54 | — |  | Origin Stories | The Leakey Foundation | |
| 55 | — |  | Eons: Surviving Deep Time | PBS | |
| 56 | — |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 57 | — | T | Time Travel | Quiet. Please | |
| 58 | — |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 59 | — |  | American Innovations | Audible | |
| 60 | — | T | The Cancer Researcher Podcast | The European Association for Cancer Research (EACR) | |
| 61 | — | M | Many Minds | Kensy Cooperrider – Diverse Intelligences Summer Institute | |
| 62 | — | P | Pediatric Physical Therapy - Pediatric Physical Therapy Podcast | Pediatric Physical Therapy | |
| 63 | — | P | Paperboats | Ian Grosz and Station House Media Unit | |
| 64 | 39 |  | The Climate Question | BBC World Service | |
| 65 | 31 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 66 | 33 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 67 | 36 |  | Science Talk | Scientific American | |
| 68 | 14 |  | The Michael Shermer Show | Michael Shermer | |
| 69 | 31 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 70 | 33 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 71 | 29 |  | BBC Inside Science | BBC Radio 4 | |
| 72 | 33 |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 73 | 33 | T | THRIVING MINDS PODCAST | Professor Selena Bartlett, Neuroscientist, Brain Health is Everyone's Business | |
| 74 | 28 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 75 | 39 |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 76 | 33 | C | Clinically Thinking | Clinically Thinking | |
| 77 | 33 | N | New Books in Political Science | New Books Network | |
| 78 | 33 |  | EVSN: Escape Velocity Space News | Dr. Pamela Gay, Erik Madaus, Ally Pelphrey | |
| 79 | 32 | R | Real Zero | Daniel Grant & Hugh Montgomery | |
| 80 | 32 |  | SuperHumanizer Podcast | Dr. Hani Chaabo & Katie Bogen M.A. | |
| 81 | 18 |  | CrowdScience | BBC World Service | |
| 82 | 26 | O | Open Country | BBC Radio 4 | |
| 83 | 31 |  | Science Friday | Science Friday and WNYC Studios | |
| 84 | 19 |  | Astrum Space | Astrum | |
| 85 | 35 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 86 | 31 |  | Speaking of Psychology | American Psychological Association | |
| 87 | 30 |  | When Science Finds a Way | Wellcome | |
| 88 | 21 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 89 | 20 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 90 | 24 |  | Crossing The River | More Than Human Life (MOTH) | |
| 91 | 18 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 92 | 21 |  | Drilled | Pushkin Industries | |
| 93 | 40 | C | CountryWide | RTÉ Radio 1 | |
| 94 | 24 |  | Beat Your Genes Podcast | BeatYourGenes | |
| 95 | 20 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 96 | 22 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 97 | 10 | L | Love The Bees Podcast | Yvonne Johnston | |
| 98 | 20 | P | Pod of Orcas | SeaDoc Society | |
| 99 | 40 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 100 | 21 |  | Discovery | BBC World Service | |
