| 1 | — | F | Futureproof with Jonathan McCrea | Newstalk | |
| 1 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 4 | 2 |  | Curious Cases | BBC Radio 4 | |
| 5 | 4 |  | More or Less | BBC Radio 4 | |
| 6 | 2 |  | CrowdScience | BBC World Service | |
| 7 | 4 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 8 | 7 | C | CountryWide | RTÉ Radio 1 | |
| 9 | — | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 10 | 1 |  | Science Weekly | The Guardian | |
| 10 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 11 | 3 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 13 | 7 |  | Mysterious Universe | 8th Kind | |
| 13 | 6 | B | Boring History for Sleep | Velvet | |
| 14 | 2 |  | Discovery | BBC World Service | |
| 15 | 6 |  | The world, the universe and us | New Scientist | |
| 15 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 16 | 3 |  | Science In Action | BBC World Service | |
| 16 | 6 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 17 | 3 |  | The Climate Question | BBC World Service | |
| 18 | 16 |  | Making Sense with Sam Harris | Sam Harris | |
| 19 | 5 |  | Science Vs | Spotify Studios | |
| 22 | 6 |  | Ologies with Alie Ward | Alie Ward | |
| 22 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 23 | 52 |  | The Common Descent Podcast | Common Descent | |
| 23 | 1 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 23 | — |  | Outside/In | NHPR | |
| 24 | 56 | I | ImmunoTea: Your Immunology Podcast | Lara Dungan | |
| 24 | 30 |  | Robinson's Podcast | Robinson Erhardt | |
| 24 | — | T | The Decision Corner | The Decision Lab | |
| 25 | 47 |  | Astrum Space | Astrum | |
| 26 | 25 |  | Skeptics with a K | Skeptic Media Limited | |
| 27 | 6 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 27 | 9 |  | ScienceStuff | iHeartPodcasts | |
| 28 | 85 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 29 | 14 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 29 | 61 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 30 | 5 | C | Cows and Effect | Paul Allison and Michael Blanche | |
| 30 | 104 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 31 | 6 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 31 | — |  | Ground Truths | Eric Topol | |
| 32 | 6 |  | Unexpected Elements | BBC World Service | |
| 32 | — |  | Flow Radio | Flow Research Collective | |
| 33 | 12 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 34 | 8 | T | The Human Subject | BBC Radio 4 | |
| 34 | — |  | The Ocean Age | Fed DeGobbi | |
| 34 | 58 | N | Naturefile | RTÉ lyric fm | |
| 35 | — |  | Geopop - Le Scienze nella vita di tutti i giorni | Geopop | |
| 35 | 5 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 36 | 71 |  | Ancient Aliens | PodcastOne | |
| 36 | — |  | Total Disclosure Podcast | Tyler Roberts | |
| 37 | — |  | TED Talks Science and Medicine | TED | |
| 39 | — |  | iNTO THE FRAY RADIO - Encounters with the Paranormal | Shannon LeGro | |
| 39 | 25 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 40 | 21 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 40 | — | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 41 | 7 |  | You Are Not So Smart | You Are Not So Smart | |
| 41 | — |  | This Week in Neuroscience | Vincent Racaniello | |
| 42 | 107 | I | In Your Nature | By BirdWatch Ireland | |
| 43 | 21 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 44 | 23 |  | Os três elementos | Os três elementos / TocaCast | |
| 45 | 11 | W | Where Two Deserts Meet | National Park Service | |
| 46 | 17 | N | New Scientist Weekly | New Scientist | |
| 46 | 18 | N | New Scientist Escape Pod | New Scientist | |
| 47 | 141 | C | Conservation and Science | Tommy's Outdoors | |
| 47 | — | M | Mysteries of the Universe | TheTuringApp.Com | |
| 49 | — | L | Love The Bees Podcast | Yvonne Johnston | |
| 51 | — | A | Always Engaged | Always Engaged | |
| 52 | 12 | T | The Future of Pharma | Samir Gondalia, ISPE Boston | |
| 52 | 23 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 53 | 12 | S | SCOPS Podcast | Sustainable Control of Parasites in Sheep (SCOPS) | |
| 54 | 23 |  | The VPZD Show | Drs. Vinay Prasad & Zubin Damania | |
| 55 | 23 | N | New Scientist Colab Podcasts | DMG Media | |
| 56 | 23 | D | Dementia Researcher | Dementia Researcher | |
| 57 | — | S | See See by Ceci | Dr. Cecilia Ponce Rivera | |
| 58 | 13 | R | RCPCH Podcasts | Royal College of Paediatrics and Child Health | |
| 59 | — | U | Upland Camp & Company | Jody funk | |
| 60 | 14 | T | The GOSH Paediatrics Bioethics Podcast | GOSH Learning Academy | |
| 62 | 38 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 63 | 44 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 64 | 46 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 65 | 42 | R | Ri Science Podcast | The Royal Institution | |
| 66 | 38 |  | Speaking of Psychology | American Psychological Association | |
| 66 | 9 |  | All In The Mind | ABC | |
| 67 | 41 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 68 | 37 | 6 | 60-Second Earth | Scientific American | |
| 70 | 38 |  | Rare Earth | BBC Radio 4 | |
| 71 | 31 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 71 | 32 |  | The Life Scientific | BBC Radio 4 | |
| 72 | 39 |  | Paranormal Portal | Brent Thomas | |
| 72 | 17 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 73 | 43 |  | Regenerative Agriculture Podcast | John Kempf | |
| 74 | 36 |  | The Nature Recovery Podcast | The Leverhulme Centre for Nature Recovery | |
| 75 | 38 |  | Ask MIT Climate | MIT Climate Project | |
| 76 | 41 | T | The Artificial Human | BBC Radio 4 | |
| 77 | 41 | N | Nature Magic | Mary Bermingham | |
| 78 | 39 |  | Ours To Protect on Ireland’s Classic Hits Radio | Classic Hits | |
| 79 | 39 | T | The Lost Trees Podcast | Operation Farm | |
| 79 | 28 |  | Instant Genius | Our Media | |
