| 1 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 5 |  | Curious Cases | BBC Radio 4 | |
| 3 | 8 |  | Science Weekly | The Guardian | |
| 4 | 3 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | 5 |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 2 |  | Radiolab | WNYC Studios | |
| 7 | 3 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 8 | 5 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 9 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 10 | 4 |  | More or Less | BBC Radio 4 | |
| 11 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 12 | 61 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 13 | 4 |  | That UFO Podcast | That UFO Podcast | |
| 14 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 15 | 1 | C | CountryWide | RTÉ Radio 1 | |
| 16 | 27 | W | Why? with Emma Kennedy | Podmasters | |
| 17 | 57 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 18 | 1 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 19 | 91 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 20 | 119 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 21 | 100 | T | The GOSH Paediatrics Bioethics Podcast | GOSH Learning Academy | |
| 22 | 104 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 23 | 138 |  | Manifold | Steve Hsu | |
| 24 | — |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 25 | — |  | Short Wave | NPR | |
| 26 | — |  | The Quanta Podcast | Quanta Magazine | |
| 27 | — |  | The Couples Therapist Couch | Shane Birkel | |
| 28 | — |  | The Episodic Table of Elements | T. R. Appleton | |
| 29 | — |  | Robinson's Podcast | Robinson Erhardt | |
| 30 | — |  | Naturebang | BBC Radio 4 | |
| 31 | — | T | Trials with Maya Z | Maya Zlatanova | |
| 32 | — |  | Origin Stories | The Leakey Foundation | |
| 33 | — |  | Stanford Psychology Podcast | Stanford Psychology | |
| 34 | — | T | The Artificial Human | BBC Radio 4 | |
| 35 | — | B | Bioethics on Air | National Catholic Bioethics Center | |
| 36 | — | T | The Ethics Round | NIHR Biomedical Research Centre, Southampton | |
| 37 | — | R | Research Ethics Reimagined | PRIM&R | |
| 38 | — | L | Longevity Acceleration Podcast | Longevity Biotech Fellowship | |
| 39 | — | C | Curiepodden | Tidningen Curie | |
| 40 | 26 |  | How We're Wired | The Bertarelli Foundation | |
| 41 | 18 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 42 | 22 |  | Universe Today Podcast | Fraser Cain | |
| 43 | 13 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 44 | 29 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 45 | 8 |  | CrowdScience | BBC World Service | |
| 46 | 27 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 47 | 29 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 48 | 27 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 49 | 9 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 50 | 28 |  | The Plodcast | Our Media | |
| 51 | 19 |  | Flash Forward | Rose Eveleth | |
| 52 | 14 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 53 | 26 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 54 | 30 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 55 | 30 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 56 | 30 | N | Nauka To Lubię | Tomasz Rożek | |
| 57 | 27 | T | The Signpost Series | Teagasc | |
| 58 | 30 | S | Sociology Ruins Everything | Matt Sedlar | |
| 59 | 30 | T | The Brain Architects | Center on the Developing Child at Harvard University | |
| 60 | 29 | M | Molecule to Market: Inside the outsourcing space | Raman Sehgal | |
| 61 | 28 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 62 | 28 | S | Science for Policy | Scientific Advice Mechanism | |
| 63 | 28 | M | Mucosal Immunology Podcast | SMI and MI Journal | |
| 64 | 28 | R | Refashioning the Renaissance | Refashioning the Renaissance | |
| 65 | 26 |  | Discovery | BBC World Service | |
| 66 | 7 |  | The world, the universe and us | New Scientist | |
| 67 | 25 | I | In Your Nature | By BirdWatch Ireland | |
| 68 | 23 |  | Science In Action | BBC World Service | |
| 69 | 14 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 70 | 9 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 71 | 30 |  | Nature Podcast | Springer Nature Limited | |
| 72 | 28 |  | Why Do We Do That? | BBC Radio 4 | |
| 73 | 34 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 74 | 74 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 75 | 29 | L | La vie partout | Quentin Travaillé | |
| 76 | 29 | T | The WildX Podcast | Andy Green, Mike Phelps and Adam Juckes | |
| 77 | 29 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 78 | 29 |  | Imagining Tomorrow | Emma Newman with Friends of the Earth | |
| 79 | 26 |  | The Psychology Podcast | iHeartPodcasts | |
| 80 | 30 | F | Frame by Frame: Rethink Imaging | Imalogix | |
| 81 | 30 | B | Big Questions From Small Minds | Big Questions from Small Minds | |
| 82 | 30 | S | See See by Ceci | Dr. Cecilia Ponce Rivera | |
| 83 | 23 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 84 | 36 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 85 | 27 |  | Science Vs | Spotify Studios | |
| 86 | 39 |  | All In The Mind | ABC | |
| 87 | 25 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 88 | 26 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 89 | 30 |  | Sasquatch Odyssey | Sasquatch Odyssey-Bigfoot Encounters | |
| 90 | — | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 91 | 4 |  | Mysterious Universe | 8th Kind | |
| 92 | 38 | W | White Coat, Black Art | CBC | |
| 93 | 18 |  | Overheard at National Geographic | National Geographic | |
| 94 | 37 | E | Endocrine Feedback Loop | Endocrine Society | |
| 95 | 12 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 96 | 33 | S | Science4Parliament Podcast | Bridging the gap between science and decision-making | |
| 97 | 32 | B | Breaking beliefism | Prof Paul Dolan | |
| 98 | 34 | C | Consciousness and the Bicameral Mind - The Julian Jaynes Society Podcast | Julian Jaynes Society | |
| 99 | 32 | M | MERLIN Podcast: Bringing Europe’s freshwaters back to life | MERLIN project | |
| 100 | 34 | W | Wild Bird Acoustics | Alan Dalton | |
