| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | Get Birding | Peanut & Crumb | |
| 3 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 3 |  | Science Weekly | The Guardian | |
| 4 | — |  | More or Less | BBC Radio 4 | |
| 5 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | 1 |  | Curious Cases | BBC Radio 4 | |
| 7 | 1 | B | Boring History for Sleep | Velvet | |
| 7 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | — |  | Ologies with Alie Ward | Alie Ward | |
| 9 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 12 | — |  | Radiolab | WNYC Studios | |
| 13 | — |  | BBC Inside Science | BBC Radio 4 | |
| 14 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 14 | 3 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 15 | — |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 15 | 5 |  | The Plodcast | Our Media | |
| 16 | 7 |  | Scotland Outdoors | BBC Radio Scotland | |
| 16 | — |  | That UFO Podcast | That UFO Podcast | |
| 17 | 1 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 18 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 19 | — |  | The Life Scientific | BBC Radio 4 | |
| 20 | 2 | F | Farming Today | BBC Radio 4 | |
| 23 | 2 |  | The world, the universe and us | New Scientist | |
| 24 | — |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 25 | 1 |  | That's Just Wild | Fresh Air | |
| 26 | 18 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 26 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 27 | 10 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 27 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 27 | 6 |  | CrowdScience | BBC World Service | |
| 28 | 6 |  | A Question of Science | The Francis Crick Institute | |
| 28 | — |  | Unexplainable | Vox | |
| 29 | — |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 30 | — |  | Universe Today Podcast | Fraser Cain | |
| 30 | 5 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 32 | 8 |  | The Psychology Podcast | iHeartPodcasts | |
| 32 | — |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 33 | 5 |  | Babbage from The Economist | The Economist | |
| 36 | 53 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 36 | — |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 37 | 34 |  | Safe to Drink | NHPR | |
| 37 | 5 |  | Astrum Space | Astrum | |
| 37 | 10 |  | Constant Wonder | BYUradio | |
| 38 | 1 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 40 | 3 |  | Science Vs | Spotify Studios | |
| 41 | — |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 42 | 21 | T | The Knepp Wilding Podcast | Knepp.co.uk | |
| 42 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 43 | 24 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 44 | 2 |  | Life Without | BBC Radio 4 | |
| 46 | 13 |  | Overheard at National Geographic | National Geographic | |
| 46 | 7 |  | Discovery | BBC World Service | |
| 48 | — |  | New Books in Critical Theory | Marshall Poe | |
| 48 | 36 | E | ESO Voice of Stroke | European Stroke Organisation | |
| 49 | 19 |  | Great Mysteries of Physics | The Conversation | |
| 49 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 50 | — |  | Bigfoot Society | Jeremiah Byron | |
| 50 | 16 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 50 | 7 |  | Unexpected Elements | BBC World Service | |
| 51 | — |  | The Climate Question | BBC World Service | |
| 52 | — |  | Speaking of Psychology | American Psychological Association | |
| 52 | 3 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 54 | — | W | Wild Tales | Nature Podcast | National Trust | |
| 56 | — |  | All In The Mind | ABC | |
| 58 | — |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 58 | 6 |  | The Quanta Podcast | Quanta Magazine | |
| 60 | — |  | The Micah Hanks Program | Micah Hanks | |
| 61 | 12 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 61 | 29 |  | Nature Podcast | Springer Nature Limited | |
| 61 | — |  | Dr Karl Podcast | triplej | |
| 62 | — |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 63 | 17 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 65 | — |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 67 | 7 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 68 | 8 |  | You Are Not So Smart | You Are Not So Smart | |
| 68 | 4 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 69 | — |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 70 | 24 |  | UFO Chronicles Podcast | Nik Hunter | |
| 70 | 7 |  | Accidental Gods | Accidental Gods | |
| 70 | — | T | The Artificial Human | BBC Radio 4 | |
| 74 | 13 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 74 | 23 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 75 | — |  | The Michael Shermer Show | Michael Shermer | |
| 76 | 15 |  | The Common Descent Podcast | Common Descent | |
| 76 | 7 |  | Podcast UFO | Martin Willis | |
| 78 | — |  | Science Friday | Science Friday and WNYC Studios | |
| 79 | — |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 81 | — |  | Blurry Creatures | Blurry Creatures | |
| 82 | — |  | In Defense of Plants Podcast | In Defense of Plants | |
| 82 | 10 | O | Open Country | BBC Radio 4 | |
| 85 | 1 |  | Instant Genius | Our Media | |
| 85 | 44 |  | Planet Em | Emily McDonald | |
| 85 | — | B | Big Cat Conversations | Rick Minter | |
| 86 | 25 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 87 | 19 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 87 | 27 |  | The Science of Everything Podcast | James Fodor | |
| 88 | — | A | At the Edge | Peter Cairns | |
| 88 | — | T | The Systemic Way | Sezer and Julie | |
| 91 | 2 |  | A Life More Wild | Canopy & Stars | |
