| 1 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | — |  | Curious Cases | BBC Radio 4 | |
| 3 | — | W | Wild Tales | Nature Podcast | National Trust | |
| 4 | — |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 5 | 1 | S | SquaMates | SquaMates | |
| 6 | 1 |  | Science Vs | Spotify Studios | |
| 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 | — |  | Science Weekly | The Guardian | |
| 12 | — |  | Instant Genius | Our Media | |
| 13 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 14 | 1 |  | Mysterious Universe | 8th Kind | |
| 15 | — |  | Skeptoid | Brian Dunning | |
| 16 | — |  | New Books in Psychoanalysis | Marshall Poe | |
| 17 | — | B | Brain Matters | Brain Matters Neuroscience | |
| 18 | — |  | Radiolab | WNYC Studios | |
| 19 | 2 |  | Unexplainable | Vox | |
| 20 | — |  | More or Less | BBC Radio 4 | |
| 21 | 11 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 22 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 23 | — |  | Science In Action | BBC World Service | |
| 24 | 9 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 25 | 3 | I | It's a Very Exciting Time | Scott Vandehey & Chuck Lauer Vose | |
| 26 | 2 | O | Open Country | BBC Radio 4 | |
| 27 | 85 |  | Invisibilia | NPR | |
| 28 | 59 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 29 | 4 |  | Big Picture Science | Big Picture Science | |
| 30 | 4 | S | Silicon Valley Astronomy Lectures | Silicon Valley Astronomy Lectures | |
| 31 | 98 |  | Podcast UFO | Martin Willis | |
| 32 | 2 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 33 | 22 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 34 | 6 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 35 | 40 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 36 | 2 |  | Deep Dive: MH370, Remastered | Jeff Wise | |
| 37 | 54 |  | BBC Inside Science | BBC Radio 4 | |
| 38 | 3 |  | Skeptics with a K | Skeptic Media Limited | |
| 39 | 3 | O | One World, One Health | One Health Trust | |
| 40 | 5 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 41 | 64 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 42 | 71 |  | Physics World Weekly Podcast | Physics World | |
| 43 | 123 |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 44 | 128 |  | The Couples Therapist Couch | Shane Birkel | |
| 45 | 130 |  | The Plodcast | Our Media | |
| 46 | — | O | Origins & Evolution | Origins | |
| 47 | 4 |  | Short Wave | NPR | |
| 48 | 19 |  | Ologies with Alie Ward | Alie Ward | |
| 49 | 9 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 50 | 42 |  | Science Friday | Science Friday and WNYC Studios | |
| 51 | 76 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 52 | 104 |  | Need To Know | Bryce Zabel | |
| 53 | 110 |  | Ask a Spaceman! | Paul M. Sutter | |
| 54 | — |  | Kosmographia | Randall Carlson | |
| 55 | — |  | Paranormal Portal | Brent Thomas | |
| 56 | 3 |  | Bigfoot and Beyond with Cliff and Bobo | Bigfoot and Beyond LLC | |
| 57 | 15 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 58 | — | K | Klotet | Sveriges Radio | |
| 59 | 10 |  | The Psychology Podcast | iHeartPodcasts | |
| 60 | 25 | W | Walkabout the Galaxy | Joshua Colwell, Adrienne Dove, and James Cooney | |
| 61 | — | 超 | 超リアルな行動心理学 | FERMONDO | |
| 62 | — | T | The Immunology Podcast | The Immunology Podcast | |
| 63 | 19 | C | Chirocast | Dr. Drew Rubin | |
| 64 | 37 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 65 | 34 |  | Endocrine News Podcast | Endocrine Society | |
| 66 | 7 | W | Wilderness Medicine Podcast | Wilderness Medical Society | |
| 67 | 30 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 68 | 30 | ![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 | |
| 69 | 30 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 70 | 30 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 71 | 28 |  | Scotland Outdoors | BBC Radio Scotland | |
| 72 | 31 |  | This Week in Virology | Vincent Racaniello | |
| 73 | 6 |  | Robinson's Podcast | Robinson Erhardt | |
| 74 | 28 | N | New Books in Anthropology | New Books Network | |
| 75 | 28 |  | Star Tales and Cocktails | Sirisha Bandla and Jacki Cortese | |
| 76 | — | M | microTalk | Karl Klose | |
| 77 | 29 |  | Safety Third | Safety Third | |
| 78 | 26 | 2 | 24/7 | Beggi Ólafs | |
| 79 | 29 |  | The world, the universe and us | New Scientist | |
| 80 | 37 | T | The Natural History Podcast | James Mills | |
| 81 | 28 |  | RumSnak | Tina Ibsen + Anders Høeg Nissen | |
| 82 | 28 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 83 | 2 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 84 | 28 |  | Espacio en blanco | Radio Nacional | |
| 85 | 28 |  | The DemystifySci Podcast | DemystifySci | |
| 86 | 22 |  | Why Do We Do That? | BBC Radio 4 | |
| 87 | 27 |  | The Life Scientific | BBC Radio 4 | |
| 88 | 27 | F | Farming Today | BBC Radio 4 | |
| 89 | 27 |  | Countercurrent: conversations with Professor Roger Kneebone | Professor Roger Kneebone | |
| 90 | 27 |  | Quirks and Quarks | CBC | |
| 91 | 27 |  | All In The Mind | ABC | |
| 92 | 27 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 93 | 27 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 94 | 4 |  | Discovery | BBC World Service | |
| 95 | 4 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 96 | 28 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 97 | 28 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 98 | 28 |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 99 | 28 |  | Psychedelics Today | Psychedelics Today | |
| 100 | 28 | D | Diagnosing Dilemmas | Stanford Association for Medical Ethics | |
