| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | 1 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 3 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 17 |  | Making Sense with Sam Harris | Sam Harris | |
| 6 | — |  | More or Less | BBC Radio 4 | |
| 7 | — |  | Re:Energise from ESB | ESB | |
| 8 | 3 |  | Radiolab | WNYC Studios | |
| 9 | 9 |  | Unexplainable | Vox | |
| 10 | 96 | B | Boring History for Sleep | Velvet | |
| 11 | 1 | L | Love The Bees Podcast | Yvonne Johnston | |
| 12 | 3 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 13 | 5 | I | In Your Nature | By BirdWatch Ireland | |
| 14 | 15 | ![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 | |
| 15 | 18 |  | BrainStuff | iHeartPodcasts | |
| 16 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 17 | 25 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 18 | 4 |  | The world, the universe and us | New Scientist | |
| 19 | 104 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 20 | 36 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 21 | 12 |  | Science Weekly | The Guardian | |
| 22 | 154 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 23 | 85 | F | Farming Today | BBC Radio 4 | |
| 24 | 13 | N | Naturefile | RTÉ lyric fm | |
| 25 | 6 |  | Future Ecologies | Future Ecologies | |
| 26 | 147 |  | Universe Today Podcast | Fraser Cain | |
| 27 | 139 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 28 | 131 |  | Astrum Space | Astrum | |
| 29 | 15 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 30 | — |  | Mythfits | Pionaire Podcasting | |
| 31 | — | E | Ecolution | RTÉ Kids | |
| 32 | — | T | The Critter Shed | Collie Ennis & Colette Kinsella for Red Hare Media | |
| 33 | — | C | Cows and Effect | Paul Allison and Michael Blanche | |
| 34 | — | T | The Artificial Human | BBC Radio 4 | |
| 35 | — |  | MinuteEarth | Minute Earth | |
| 36 | — |  | Safer Chemicals Podcast | European Chemicals Agency | |
| 37 | — | T | The HPS Podcast - Conversations from History, Philosophy and Social Studies of Science | HPSUniMelb.org | |
| 38 | — | M | Mind & Life Europe Podcast | Mind & Life Europe | |
| 39 | — | 6 | 63 Degrees North | NTNU | |
| 40 | — | S | Scoliosis Dialogues: An SRS Podcast | Scoliosis Research Society | |
| 41 | 11 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 42 | 38 |  | The Psychology Podcast | iHeartPodcasts | |
| 43 | 30 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 44 | 47 | T | The Signpost Series | Teagasc | |
| 45 | 29 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 46 | 112 |  | Babbage from The Economist | The Economist | |
| 47 | 30 |  | Discovery | BBC World Service | |
| 48 | 23 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 49 | 22 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 50 | 26 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 51 | 31 |  | Origin Stories | The Leakey Foundation | |
| 52 | 31 |  | Physics World Weekly Podcast | Physics World | |
| 53 | 30 |  | Speaking of Psychology | American Psychological Association | |
| 54 | 28 | T | The Dairy Trail | Agriland Media | |
| 55 | 24 | R | Relaxing sleep sounds | Glen Hyland | |
| 56 | 126 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 57 | 23 |  | Osterholm Update | CIDRAP | |
| 58 | — |  | Choiceology with Katy Milkman | Charles Schwab | |
| 59 | 31 | T | The Deep-Sea Podcast | Thomas Linley | |
| 60 | 30 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 61 | — |  | Dharma Lab | Dharma Lab | |
| 62 | 30 | T | The Microbiome Mavericks | Dr. Amine Zorgani | |
| 63 | — |  | Small Steps, Giant Leaps | National Aeronautics and Space Administration (NASA) | |
| 64 | 29 | P | People of Pathology Podcast | peopleofpathology | |
| 65 | 29 |  | Immune | Vincent Racaniello | |
| 66 | 29 | S | SCOPS Podcast | Sustainable Control of Parasites in Sheep (SCOPS) | |
| 67 | — |  | StringCast | استرینگکست | Shahin Javadi Nezhad & Reza Haririan | |
| 68 | 30 | ب | بودكاست غربة | GhorbahPodcast | بودكاست غربة | |
| 69 | 30 |  | A Life More Wild | Canopy & Stars | |
| 70 | 30 |  | Accidental Gods | Accidental Gods | |
| 71 | 58 |  | Science In Action | BBC World Service | |
| 72 | 31 |  | Rare Earth | BBC Radio 4 | |
| 73 | 27 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 74 | 11 |  | Overheard at National Geographic | National Geographic | |
| 75 | 28 | C | CountryWide | RTÉ Radio 1 | |
| 76 | 27 |  | Short Wave | NPR | |
| 77 | 32 | ' | 'Mind the Kids': an ACAMH podcast | The Association for Child and Adolescent Mental Health | |
| 78 | 35 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 79 | 21 |  | Expanded Perspectives | Expanded Perspectives | |
| 80 | 23 |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 81 | 33 | W | Wild Tales | Nature Podcast | National Trust | |
| 82 | 32 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 83 | 32 | T | The Hague Diplomacy Podcast | The Hague Diplomacy Podcast | |
| 84 | 25 |  | Drilled | Pushkin Industries | |
| 85 | 17 |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 86 | 32 |  | Because Language - a podcast about linguistics, the science of language. | Daniel Midgley, Ben Ainslie, and Hedvig Skirgård | |
| 87 | 27 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 88 | 35 |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 89 | 28 |  | Cryptid Creatures | Brian Brock/Todd Stevens | |
| 90 | 35 |  | New Books in Critical Theory | Marshall Poe | |
| 91 | 22 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 92 | 27 | T | Tom MacSweeney's Maritime Podcast | Tom MacSweeney | |
| 93 | 31 | N | Neuroscience of Coaching | Mirasee FM | |
| 94 | 31 | N | Nature Magic | Mary Bermingham | |
| 95 | 29 | N | National Geographic Magazine | Radio Eye | |
| 96 | 32 |  | Cryptids Of The Corn | Cryptids of the Corn Podcast | |
| 97 | 30 |  | The Behavioral Design Podcast | Samuel Salzer and Aline Holzwarth | |
| 98 | 28 | T | The Met Éireann Podcast | Met Éireann | |
| 99 | 28 | T | The Language Neuroscience Podcast | Stephen M. Wilson | |
| 100 | 28 |  | That's Absurd Please Elaborate | Trace Elements Media | |
