| 2 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 2 |  | Unexplainable | Vox | |
| 5 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 8 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 10 | 1 |  | Science Vs | Spotify Studios | |
| 11 | 2 |  | BBC Inside Science | BBC Radio 4 | |
| 11 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 11 | 1 |  | The Michael Shermer Show | Michael Shermer | |
| 12 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 13 | 21 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 14 | — |  | Ask the Naked Scientists | Dr Chris Smith | |
| 15 | 7 |  | The Life Scientific | BBC Radio 4 | |
| 16 | — |  | Discovery | BBC World Service | |
| 17 | 3 | W | Wildest Kruger Stories | Karolina Norée | |
| 18 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 18 | 12 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 19 | 7 |  | Blurry Creatures | Blurry Creatures | |
| 20 | 4 |  | Science Friday | Science Friday and WNYC Studios | |
| 22 | 1 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 26 | 35 |  | Overheard at National Geographic | National Geographic | |
| 26 | 2 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 26 | 13 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 27 | 47 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 27 | 4 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 28 | 5 | S | Safari Stories | Trunks and Tracks | |
| 28 | 7 |  | CrowdScience | BBC World Service | |
| 29 | 135 |  | Speaking of Psychology | American Psychological Association | |
| 29 | 24 |  | The Quanta Podcast | Quanta Magazine | |
| 29 | 7 |  | Ancient Aliens | PodcastOne | |
| 33 | 113 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 36 | 10 |  | The Science of Everything Podcast | James Fodor | |
| 36 | 93 |  | Accidental Gods | Accidental Gods | |
| 37 | 10 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 37 | 7 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 40 | — |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 40 | 41 |  | That's Just Wild | Fresh Air | |
| 41 | — |  | Deep Seed - Regenerative Agriculture | Raphael Esterhazy | |
| 42 | 2 |  | How We're Wired | The Bertarelli Foundation | |
| 43 | 2 |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 44 | 97 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 44 | — |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 46 | 45 |  | Living Planet | DW | |
| 47 | — |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 47 | 57 |  | Bedtime Astronomy | Synthetic Universe | |
| 48 | 16 |  | Instant Genius | Our Media | |
| 49 | — |  | Expanded Perspectives | Expanded Perspectives | |
| 49 | 35 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 50 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 51 | 8 |  | Naked Astronomy, from the Naked Scientists | The Naked Scientists | |
| 51 | — |  | Aha! Zehn Minuten Alltags-Wissen | WELT | |
| 51 | 6 |  | New Books in Psychoanalysis | Marshall Poe | |
| 51 | 53 |  | Universe Today Podcast | Fraser Cain | |
| 52 | 76 | R | Rain and Thunder Storms Podcast | Natural Podcasts | |
| 52 | — |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 54 | 14 |  | Radiowissen | Bayerischer Rundfunk | |
| 54 | — |  | BirdNote Daily | BirdNote | |
| 55 | 15 |  | That UFO Podcast | That UFO Podcast | |
| 55 | 8 |  | Short Wave | NPR | |
| 55 | 1 | T | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 56 | 11 |  | Drilled | Pushkin Industries | |
| 58 | 9 | U | Unlocking Behaviour Change | Robert West | |
| 61 | — |  | Quarks Daily | Quarks | |
| 61 | — | S | Science Conversations | 3ABN Australia Radio | |
| 62 | 10 | A | Asimov Press | Asimov Press | |
| 66 | — | T | The Royal College of Psychiatrists Podcast | RCPsych | |
| 66 | — |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 66 | — |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 67 | — | T | The Root Of The Science Podcast | Anne Chisa | |
| 67 | 17 |  | The New Quantum Era - innovation in quantum computing, science and technology | Sebastian Hassinger | |
| 68 | 125 |  | From First Principles | Krishna Choudhary and Lester Nare | |
| 69 | 18 |  | Space Boffins, from the Naked Scientists | Richard Hollingham, Sue Nelson | |
| 70 | — |  | Hematologic Oncology Update | Dr. Neil Love | |
| 71 | — |  | The Joy of x | Steven Strogatz and Quanta Magazine | |
| 71 | 12 |  | TheThinkingAtheist | The Thinking Atheist | |
| 72 | 19 | L | Learn Traditional Chinese Medicine, Functional Medicine and any kinds of Alternative Medicine | Shiho Cierra Fujimaru | |
| 72 | — | M | Making Sense with Sam Harris | 5 minute podcast summaries | 5 minute podcast summaries | |
| 73 | 19 | P | Paediatric Emergencies | Dr Christopher Flannigan | |
| 75 | 20 | T | The Qubit Guy's Podcast | Yuval Boger (a.k.a. The Qubit Guy) | |
| 78 | 121 |  | The Acres U.S.A. Podcast | Acres U.S.A.® | |
| 79 | — |  | Shark Week: The Podcast | Discovery | |
| 80 | — |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 82 | 47 |  | Science Quickly | Scientific American | |
| 85 | 60 |  | All In The Mind | ABC | |
| 86 | 40 |  | Science Magazine Podcast | Science Magazine | |
| 86 | — | T | Tax Conversations Africa | Tax Justice Network Africa (TJNA) | |
| 87 | 7 |  | The world, the universe and us | New Scientist | |
| 88 | 10 |  | This Week in Virology | Vincent Racaniello | |
| 89 | 13 |  | Science In Action | BBC World Service | |
| 89 | 57 |  | Mysterious Universe | 8th Kind | |
| 89 | 42 |  | Unexpected Elements | BBC World Service | |
| 91 | 23 |  | The Science of Birds | Ivan Phillipsen | |
| 92 | — |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 93 | 10 |  | Critical Matters | Sound Physicians | |
| 93 | 1 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 94 | 20 |  | Altered States | PRX | |
| 95 | — |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 95 | 44 | C | Central Banking, Deposit Insurance, and Economic Decline | Mises Institute | |
| 96 | 7 | T | The Amp Hour Electronics Podcast | The Amp Hour (Chris Gammell and David L Jones) | |
| 96 | 21 |  | When Science Finds a Way | Wellcome | |
