| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 1 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 7 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 4 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 4 | — |  | Unexplainable | Vox | |
| 4 | 1 |  | Lost Women of Science | Lost Women of Science | |
| 4 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 6 | 1 |  | The Psychology Podcast | iHeartPodcasts | |
| 6 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 10 | 1 |  | More or Less | BBC Radio 4 | |
| 10 | 1 |  | Science Vs | Spotify Studios | |
| 13 | 3 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 14 | 24 |  | This Week in Cardiology | Medscape | |
| 14 | — |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 15 | 14 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 15 | 15 |  | Speaking of Psychology | American Psychological Association | |
| 15 | 25 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 15 | 3 |  | Blurry Creatures | Blurry Creatures | |
| 16 | 6 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 1 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 17 | — | B | Boring History for Sleep | Velvet | |
| 17 | 49 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 18 | 1 |  | Curious Cases | BBC Radio 4 | |
| 18 | 62 | S | Students of Surgery | Martin Brand | |
| 18 | 7 |  | CrowdScience | BBC World Service | |
| 19 | 11 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 19 | 126 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 20 | 8 |  | Science Weekly | The Guardian | |
| 21 | 1 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 22 | 2 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 23 | — |  | The Casual Birder Podcast | Suzy Buttress | |
| 23 | — |  | The Medbullets Step 2 & 3 Podcast | Medbullets | |
| 24 | 8 |  | THE CLUB OF ROME PODCAST | The Club of Rome | |
| 24 | 82 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 24 | — |  | The Numberphile Podcast | Brady Haran | |
| 25 | — |  | Clinical Chemistry Podcast | Association for Diagnostics and Laboratory Medicine | |
| 26 | — |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 27 | 1 |  | Science Quickly | Scientific American | |
| 28 | 3 |  | The Medbullets Step 1 Podcast | Medbullets | |
| 28 | 15 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 29 | — |  | COMPLEXITY | Santa Fe Institute | |
| 29 | — |  | The Science of Birds | Ivan Phillipsen | |
| 29 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 30 | 83 |  | Why Do We Do That? | BBC Radio 4 | |
| 30 | 11 |  | A Life More Wild | Canopy & Stars | |
| 31 | — | T | Trees A Crowd | David Oakes | |
| 31 | 167 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 32 | 121 | T | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 32 | 14 |  | Mythfits | Pionaire Podcasting | |
| 32 | — |  | Strange and Unexplained | Cristina Gomez | |
| 33 | 12 | O | Open Country | BBC Radio 4 | |
| 34 | 1 | Q | Quick Fire Science, from the Naked Scientists | The Naked Scientists | |
| 34 | — | T | The Case for Conservation Podcast | www.case4conservation.com | |
| 35 | — |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 35 | 22 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 35 | — |  | Proxy with Yowei Shaw | Y3 Productions | |
| 36 | 9 | N | New Books in National Security | Marshall Poe | |
| 37 | 2 |  | The Data Science Education Podcast | Berkeley Data Science | |
| 37 | 81 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 38 | 10 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 38 | 16 | R | RadioGraphics Podcast | RSNA | Radiological Society of North America (RSNA) | |
| 39 | 18 |  | Universe Today Podcast | Fraser Cain | |
| 39 | — |  | IFLScience - The Big Questions | IFLScience | |
| 41 | 22 | G | Green Noise | CapeNature | |
| 42 | 2 |  | Babbage from The Economist | The Economist | |
| 42 | — | F | Four Eyes | Modern Optometry | |
| 43 | 9 |  | The Michael Shermer Show | Michael Shermer | |
| 43 | 23 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 43 | — | T | The MOD Pod | Modern Optometry | |
| 44 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 44 | 21 |  | Intelligent Design the Future | Discovery Institute | |
| 44 | 8 |  | The world, the universe and us | New Scientist | |
| 45 | 15 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 46 | 22 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 48 | 17 |  | Astrum Space | Astrum | |
| 50 | 11 |  | Origin Stories | The Leakey Foundation | |
| 51 | 25 |  | Skeptics with a K | Skeptic Media Limited | |
| 52 | 4 |  | Unexpected Elements | BBC World Service | |
| 53 | 20 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 54 | 30 |  | Ancient Aliens | PodcastOne | |
| 54 | 16 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 55 | 26 | M | Medical Affairs Unscripted | Lumanity Medical Affairs Consulting | |
| 56 | 14 |  | Overheard at National Geographic | National Geographic | |
| 59 | 44 |  | Nature Podcast | Springer Nature Limited | |
| 59 | 20 | L | Les grandes étapes de la vie | France Inter | |
| 60 | 26 |  | The Optispan Podcast with Matt Kaeberlein | Optispan | |
| 61 | 10 |  | Discovery | BBC World Service | |
| 61 | 4 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 62 | 7 |  | Science In Action | BBC World Service | |
| 62 | 27 | T | The Neurosurgery Review | Mustafa Farooq | |
| 65 | 21 | M | Mushroom Revival Podcast | Alex Dorr | |
| 66 | 21 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 67 | 21 |  | The Eco Well podcast | Jen@theecowell | |
| 68 | 21 | C | Congress of Neurological Surgeons Podcasts | Congress of Neurological Surgeons | |
| 69 | — | T | The Kingless Generation | Fergal Schmudlach | |
| 69 | 21 | T | The Emic - Anthropological stories from the field | Roanne van Voorst, PhD. Dr. Anthropologist | |
| 70 | 2 | F | Farming Today | BBC Radio 4 | |
| 70 | 30 |  | Short Wave | NPR | |
