| 1 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 2 | — | W | Why? with Emma Kennedy | Podmasters | |
| 3 | 1 |  | Curious Cases | BBC Radio 4 | |
| 4 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | — |  | More or Less | BBC Radio 4 | |
| 6 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 8 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 9 | 2 |  | Science Weekly | The Guardian | |
| 10 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 11 | 1 |  | Radiolab | WNYC Studios | |
| 12 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 13 | 2 |  | The world, the universe and us | New Scientist | |
| 14 | — |  | BBC Inside Science | BBC Radio 4 | |
| 15 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 16 | 3 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 17 | — |  | A Life More Wild | Canopy & Stars | |
| 18 | 2 |  | The Plodcast | Our Media | |
| 19 | 1 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 20 | — |  | That UFO Podcast | That UFO Podcast | |
| 21 | 6 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 22 | 1 |  | The Life Scientific | BBC Radio 4 | |
| 23 | 1 |  | CrowdScience | BBC World Service | |
| 24 | 10 |  | Scotland Outdoors | BBC Radio Scotland | |
| 25 | 4 |  | Overheard at National Geographic | National Geographic | |
| 26 | 2 |  | Discovery | BBC World Service | |
| 27 | 4 |  | The Psychology Podcast | iHeartPodcasts | |
| 28 | 2 | W | Waterlands | Wildfowl & Wetlands Trust | |
| 29 | 1 |  | Science In Action | BBC World Service | |
| 30 | 6 |  | Science Vs | Spotify Studios | |
| 31 | 25 |  | Unexplainable | Vox | |
| 32 | 1 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 33 | 6 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 34 | 4 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 35 | 7 |  | Dr Giles Yeo Chews the Fat | Orion Publishing Ltd. | |
| 36 | 49 |  | Rare Earth | BBC Radio 4 | |
| 37 | 9 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 38 | 10 |  | Unexpected Elements | BBC World Service | |
| 39 | 11 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 40 | 5 | T | The Organic Grower Podcast | Organic Growers Alliance | |
| 41 | 8 | E | Elfonomics - with Elf Lyons and Dr Gerard Lyons | Elfonomics | |
| 42 | 59 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 43 | 18 | Z | ZOOKEEPING 101 | James Dennis | |
| 44 | 7 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 45 | 4 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 46 | 11 |  | Child | BBC Radio 4 | |
| 47 | 15 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 48 | 1 |  | Star Diary | BBC Sky at Night Magazine | |
| 49 | 12 |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 50 | 6 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 51 | 18 |  | Nature Podcast | Springer Nature Limited | |
| 52 | 6 | T | The We Society | AcSS | |
| 53 | 4 |  | Speaking of Psychology | American Psychological Association | |
| 54 | 14 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 55 | 12 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 56 | 9 |  | Universe Today Podcast | Fraser Cain | |
| 57 | 10 |  | How We're Wired | The Bertarelli Foundation | |
| 58 | 4 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 59 | 7 |  | Brave New World | Evening Standard | |
| 60 | 20 |  | All In The Mind | ABC | |
| 61 | 9 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 62 | 2 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 63 | 5 | F | Farming Today | BBC Radio 4 | |
| 64 | 14 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 65 | 3 |  | The Climate Question | BBC World Service | |
| 66 | 7 | ![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 | |
| 67 | 5 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 68 | 5 |  | Total Disclosure Podcast | Tyler Roberts | |
| 69 | 45 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 70 | 34 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 71 | 79 | T | The Artificial Human | BBC Radio 4 | |
| 72 | 17 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 73 | 47 |  | The Common Descent Podcast | Common Descent | |
| 74 | 1 |  | The Astrophysics Podcast | Paul Duffell | |
| 75 | 9 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 76 | 23 |  | Instant Genius | Our Media | |
| 77 | 11 |  | Accidental Gods | Accidental Gods | |
| 78 | 54 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 79 | 34 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 80 | 1 | B | Big Cat Conversations | Rick Minter | |
| 81 | 17 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 82 | 11 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 83 | 6 |  | Nephilim Death Squad | TopLobsta Productions | |
| 84 | — |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 85 | 2 |  | Mysterious Universe | 8th Kind | |
| 86 | 4 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 87 | 1 |  | Somewhere in the Skies | SpectreVision Radio | |
| 88 | 14 |  | Blurry Creatures | Blurry Creatures | |
| 89 | 3 |  | Ask a Spaceman! | Paul M. Sutter | |
| 90 | 29 | B | Best Medicine | BBC Radio 4 | |
| 91 | 8 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 92 | 15 |  | New Books in Critical Theory | Marshall Poe | |
| 93 | 12 | T | The Human Subject | BBC Radio 4 | |
| 94 | 105 |  | Podcast UFO | Martin Willis | |
| 95 | 6 |  | Cited Podcast | Cited Media | |
| 96 | 2 | T | The Meaning of Trees Podcast | Tom Hill | |
| 97 | 36 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 98 | 20 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 99 | 26 |  | Physics World Weekly Podcast | Physics World | |
| 100 | 40 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
