| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | — | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 3 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 5 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 7 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 8 | 34 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 9 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 10 | — |  | State of Seed | Foreign Policy | |
| 11 | 3 |  | More or Less | BBC Radio 4 | |
| 12 | 6 | B | Boring History for Sleep | Velvet | |
| 13 | 4 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 14 | 32 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 15 | — |  | Radiolab | WNYC Studios | |
| 16 | 8 |  | The Psychology Podcast | iHeartPodcasts | |
| 17 | 127 |  | Почему мы еще живы | libo/libo | |
| 18 | 7 |  | That's Just Wild | Fresh Air | |
| 19 | 34 |  | Bigfoot Terror in the Woods Sightings and Encounters | W.J. Sheehan | |
| 20 | 8 |  | Care More Be Better: A Podcast For Sustainable Social Impact and Regeneration | Corinna Bellizzi | |
| 21 | 8 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 22 | 8 | I | In Your Nature | By BirdWatch Ireland | |
| 23 | 118 | C | CountryWide | RTÉ Radio 1 | |
| 24 | 150 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 25 | — |  | Climate Now | James Lawler | |
| 26 | — | C | Costing the Earth | BBC Radio 4 | |
| 27 | — |  | Mongabay Newscast | Mongabay.com | |
| 28 | — |  | Living Planet | DW | |
| 29 | — |  | The Sustainability Agenda | Fergal Byrne | |
| 30 | — |  | OncoPharm | John Bossaer | |
| 31 | 15 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 32 | 11 |  | Science Weekly | The Guardian | |
| 33 | 16 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 34 | 15 |  | The world, the universe and us | New Scientist | |
| 35 | 78 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 36 | 14 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 37 | 14 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 38 | 13 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 39 | 13 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 40 | 10 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 41 | 21 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 42 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 43 | — |  | Two Bees in a Podcast | UF/IFAS Honey Bee Lab | |
| 44 | 17 |  | Unbiased Science | @unbiasedscipod | |
| 45 | — |  | The Wild with Chris Morgan | KUOW News and Information | |
| 46 | 126 | N | New Scientist Weekly | New Scientist | |
| 47 | 19 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 48 | — |  | Alive Again | iHeartPodcasts | |
| 49 | 135 |  | SciShow Tangents | Complexly | |
| 50 | 21 |  | Drilled | Pushkin Industries | |
| 51 | 18 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 52 | 7 |  | BBC Inside Science | BBC Radio 4 | |
| 53 | 22 | D | Deep Dives With Sharks | Alex Humphreys | |
| 54 | — | L | Love The Bees Podcast | Yvonne Johnston | |
| 55 | 16 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 56 | — |  | The Common Descent Podcast | Common Descent | |
| 57 | 22 |  | It's Sedimentary, My Dear: A Geology Podcast | Ellen & Jane | |
| 58 | 24 |  | The Horse First: A Veterinary Sport Horse Podcast | Audrey DeClue, DVM | |
| 59 | — |  | Chemistry Made Simple | Matthew Macariou | |
| 60 | 24 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 61 | — |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 62 | 25 | A | ANCA Radio Shows, Autistic People | Autistic People | |
| 63 | 25 | A | ATTD: Advanced Technologies and Treatments for Diabetes | ATTD on UNLOK | |
| 64 | — | E | EM Weekly Podcast | The Readiness Lab | |
| 65 | — |  | The Nick Zentner Geology Podcast | Nick Zentner | |
| 66 | — | C | clinical thinker | ClinicalThinker | |
| 67 | 26 | M | Modern Physics: Quantum Mechanics (Winter 2012) | Leonard Susskind | |
| 68 | 25 | W | Why? with Emma Kennedy | Podmasters | |
| 69 | 25 |  | Universe Today Podcast | Fraser Cain | |
| 70 | 25 |  | Short Wave | NPR | |
| 71 | 24 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 72 | 24 | T | The Organic Grower Podcast | Organic Growers Alliance | |
| 73 | 13 |  | Science Vs | Spotify Studios | |
| 74 | 24 | H | Helt ind i selvet med Lone Frank | Weekendavisen | |
| 75 | 24 | B | Blue Earth Podcast | Blue Earth | |
| 76 | 19 | R | Resposta Imune | Folha de S.Paulo | |
| 77 | 28 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 78 | 26 | T | The BTO Podcast | British Trust for Ornithology | |
| 79 | 25 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 80 | 25 |  | The Market Gardener Podcast | JM Fortier | |
| 81 | 25 | T | The Universe Speaks in Numbers | Faber and Faber | |
| 82 | 24 | S | SPACE IN 60 | SPACE IN 60 - The NewSpace Podcast | |
| 83 | 22 |  | Science In Action | BBC World Service | |
| 84 | 19 | ![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 | |
| 85 | 21 |  | Science Talk | Scientific American | |
| 86 | 24 | N | Naturefile | RTÉ lyric fm | |
| 87 | 26 |  | Overheard at National Geographic | National Geographic | |
| 88 | 25 | E | Everything's Psychology | Paul Davies | |
| 89 | 23 | O | Open Country | BBC Radio 4 | |
| 90 | 22 | H | Hiçbir Şey Tesadüf Değil | Podbee Media | |
| 91 | 24 |  | Big Picture Science | Big Picture Science | |
| 92 | 23 | F | Feed for Thought | Pioneer Brand Products NZ | |
| 93 | 23 |  | Mythfits | Pionaire Podcasting | |
| 94 | 54 | A | Areale | Domani | Ferdinando Cotugno | |
| 95 | 24 |  | The Science of Coffee | James Harper | |
| 96 | 24 |  | Lost Women of Science | Lost Women of Science | |
| 97 | 23 | E | Economics In Ten | Economics In Ten | |
| 98 | 25 |  | Research To Practice | Oncology Videos | Dr Neil Love | |
| 99 | 24 | D | DCU Digital Law Perspectives | DCU Law and Tech Research Cluster | |
| 100 | 24 | L | Lung Cancer Update | Dr. Neil Love | |
