| 1 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 1 |  | Curious Cases | BBC Radio 4 | |
| 3 | 1 | W | Wild Tales | Nature Podcast | National Trust | |
| 4 | — |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 5 | — |  | Science Vs | Spotify Studios | |
| 6 | — | S | SquaMates | SquaMates | |
| 7 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 8 | — | U | Unlocking Bryson's Brain | CBC | |
| 9 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 10 | — | I | Innrás froskanna | RÚV Hlaðvörp | |
| 11 | 1 |  | Science Weekly | The Guardian | |
| 12 | 1 |  | Instant Genius | Our Media | |
| 13 | 2 |  | Mysterious Universe | 8th Kind | |
| 14 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 15 | 2 |  | Skeptoid | Brian Dunning | |
| 16 | 2 |  | New Books in Psychoanalysis | Marshall Poe | |
| 17 | 1 | B | Brain Matters | Brain Matters Neuroscience | |
| 18 | 1 |  | Radiolab | WNYC Studios | |
| 19 | 21 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 20 | 14 |  | More or Less | BBC Radio 4 | |
| 21 | 73 |  | Unexplainable | Vox | |
| 22 | 3 | I | It's a Very Exciting Time | Scott Vandehey & Chuck Lauer Vose | |
| 23 | 3 |  | Science In Action | BBC World Service | |
| 24 | 3 | O | Open Country | BBC Radio 4 | |
| 25 | 128 |  | Big Picture Science | Big Picture Science | |
| 26 | 2 | S | Silicon Valley Astronomy Lectures | Silicon Valley Astronomy Lectures | |
| 27 | — |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 28 | 4 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 29 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 30 | 1 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 31 | — |  | Endocrine News Podcast | Endocrine Society | |
| 32 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 33 | 11 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 34 | 4 |  | Deep Dive: MH370, Remastered | Jeff Wise | |
| 35 | 4 |  | Skeptics with a K | Skeptic Media Limited | |
| 36 | 3 | O | One World, One Health | One Health Trust | |
| 37 | 12 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 38 | 10 | ![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 | |
| 39 | 59 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 40 | 149 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 41 | 18 |  | This Week in Virology | Vincent Racaniello | |
| 42 | 26 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 43 | 31 |  | Scotland Outdoors | BBC Radio Scotland | |
| 44 | 4 | C | Chirocast | Dr. Drew Rubin | |
| 45 | 95 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 46 | 105 | N | New Books in Anthropology | New Books Network | |
| 47 | — |  | Star Tales and Cocktails | Sirisha Bandla and Jacki Cortese | |
| 48 | 37 |  | Safety Third | Safety Third | |
| 49 | 10 |  | The Psychology Podcast | iHeartPodcasts | |
| 50 | — |  | The world, the universe and us | New Scientist | |
| 51 | 71 |  | Short Wave | NPR | |
| 52 | 3 | 2 | 24/7 | Beggi Ólafs | |
| 53 | 147 |  | RumSnak | Tina Ibsen + Anders Høeg Nissen | |
| 54 | 13 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 55 | 13 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 56 | — |  | Espacio en blanco | Radio Nacional | |
| 57 | 21 |  | The DemystifySci Podcast | DemystifySci | |
| 58 | 21 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 59 | 21 |  | Bigfoot and Beyond with Cliff and Bobo | Bigfoot and Beyond LLC | |
| 60 | 13 |  | The Life Scientific | BBC Radio 4 | |
| 61 | 5 | F | Farming Today | BBC Radio 4 | |
| 62 | 21 |  | Countercurrent: conversations with Professor Roger Kneebone | Professor Roger Kneebone | |
| 63 | 20 |  | Quirks and Quarks | CBC | |
| 64 | 20 |  | All In The Mind | ABC | |
| 65 | 20 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 66 | 20 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 67 | 13 |  | Robinson's Podcast | Robinson Erhardt | |
| 68 | 19 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 69 | 19 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 70 | 19 |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 71 | 19 |  | Psychedelics Today | Psychedelics Today | |
| 72 | 19 | D | Diagnosing Dilemmas | Stanford Association for Medical Ethics | |
| 73 | 10 | W | Wilderness Medicine Podcast | Wilderness Medical Society | |
| 74 | 116 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 75 | 121 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 76 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 77 | — |  | From The Shadows | Shane Grove | |
| 78 | — |  | This Week in Microbiology | Vincent Racaniello | |
| 79 | — | T | The New York Academy of Sciences | The New York Academy of Sciences | |
| 80 | 23 |  | Somewhere in the Skies | SpectreVision Radio | |
| 81 | 9 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 82 | 24 |  | Quantitude | Greg Hancock & Patrick Curran | |
| 83 | 24 |  | Dumma Människor | Acast - Lina Thomsgård och Björn Hedensjö | |
| 84 | 103 |  | The Michael Shermer Show | Michael Shermer | |
| 85 | 25 | W | Walkabout the Galaxy | Joshua Colwell, Adrienne Dove, and James Cooney | |
| 86 | 25 |  | Science Talk | Scientific American | |
| 87 | 25 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 88 | 25 |  | The Astrophysics Podcast | Paul Duffell | |
| 89 | 25 | N | NMBU Veterinærpodden | Marte Holmøy Bratteberg | |
| 90 | 25 |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 91 | 18 |  | BBC Inside Science | BBC Radio 4 | |
| 92 | 26 |  | Science Friday | Science Friday and WNYC Studios | |
| 93 | 24 | E | Et åbent sind? | Heartbeats.dk | |
| 94 | 24 |  | VETpodden | Veterinærinstituttet | |
| 95 | 10 |  | SciShow Tangents | Complexly | |
| 96 | — |  | Completely Arbortrary | Completely Arbortrary | |
| 97 | 26 | T | The Meaning Code | Karen Wong | |
| 98 | 18 |  | Discovery | BBC World Service | |
| 99 | 15 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 100 | 25 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
