| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 2 |  | Curious Cases | BBC Radio 4 | |
| 5 | 2 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 6 | 1 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 7 | 1 |  | Radiolab | WNYC Studios | |
| 8 | 8 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 9 | 3 |  | More or Less | BBC Radio 4 | |
| 10 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 11 | 3 |  | The Psychology Podcast | iHeartPodcasts | |
| 12 | 1 |  | Science Vs | Spotify Studios | |
| 13 | 4 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 14 | — |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 15 | 38 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 16 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 17 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 18 | 1 |  | Unexplainable | Vox | |
| 19 | 42 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 20 | 6 |  | Blurry Creatures | Blurry Creatures | |
| 21 | 20 |  | Science Friday | Science Friday and WNYC Studios | |
| 22 | 2 |  | CrowdScience | BBC World Service | |
| 23 | 8 | S | Students of Surgery | Martin Brand | |
| 24 | 5 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 25 | 4 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 26 | 5 |  | Living Planet | DW | |
| 27 | 2 |  | Nature Podcast | Springer Nature Limited | |
| 28 | 30 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 29 | 25 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 30 | 35 |  | The Couples Therapist Couch | Shane Birkel | |
| 31 | 8 |  | Rare Earth | BBC Radio 4 | |
| 32 | 8 |  | Science Weekly | The Guardian | |
| 33 | 103 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 34 | 12 |  | The Science of Everything Podcast | James Fodor | |
| 35 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 36 | 3 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 37 | 97 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 38 | 158 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 39 | 98 |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 40 | 28 |  | The Michael Shermer Show | Michael Shermer | |
| 41 | — |  | The Behavioral Observations Podcast with Matt Cicoria | Matt Cicoria | |
| 42 | 11 |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 43 | — |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 44 | 4 |  | Deep Dive: MH370, Remastered | Jeff Wise | |
| 45 | — | D | Data Science Decoded | Mike E | |
| 46 | — |  | Flash Forward | Rose Eveleth | |
| 47 | 19 | M | Môre onder die Soeklig | Afrikaans.Radio | |
| 48 | — | P | Philosophy | Cambridge University | |
| 49 | — | B | Biostatistics Podcast | Jocelyn Chen | |
| 50 | — |  | Spacewalk with Everyday Astronaut | Tim Dodd | |
| 51 | 15 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 52 | 25 | T | The Pain Beat | IASP Pain Research Forum | |
| 53 | 23 |  | Science In Action | BBC World Service | |
| 54 | 1 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 55 | 23 |  | The Episodic Table of Elements | T. R. Appleton | |
| 56 | 23 |  | New Books in Psychoanalysis | Marshall Poe | |
| 57 | — |  | עושים היסטוריה עם רן לוי Osim Historia With Ran Levi | רשת עושים היסטוריה | |
| 58 | 24 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 59 | 22 |  | Unbiased Science | @unbiasedscipod | |
| 60 | 22 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 61 | 15 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 62 | 15 |  | Skeptoid | Brian Dunning | |
| 63 | 24 |  | Unexpected Elements | BBC World Service | |
| 64 | 22 | W | Wildest Kruger Stories | Karolina Norée | |
| 65 | 20 | T | The Addiction Psychologist | Samuel Acuff and Noah Emery | |
| 66 | 17 | W | Wissenschaft und Technik | Bayerischer Rundfunk | |
| 67 | 24 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 68 | 2 |  | Invisibilia | NPR | |
| 69 | 25 | T | The SRS Podcast | Sleep Research Society | |
| 70 | 22 |  | Chemistry Made Simple | Matthew Macariou | |
| 71 | 21 |  | The Geography of Everything | Ronni Ravid & Zenne Hellinga | |
| 72 | 21 | J | Journal of Neurophysiology | jneurophysiol | |
| 73 | 21 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 74 | 1 |  | TheThinkingAtheist | The Thinking Atheist | |
| 75 | 14 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 76 | — | T | The Space Show by Dr. David Livingston | Dr. David M. Livingston | |
| 77 | 21 | P | Psychology | Yale School of Medicine | |
| 78 | 18 |  | Science Magazine Podcast | Science Magazine | |
| 79 | 16 |  | Short Wave | NPR | |
| 80 | 6 |  | The Science of Birds | Ivan Phillipsen | |
| 81 | 24 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 82 | 13 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 83 | 10 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 84 | — |  | Instant Genius | Our Media | |
| 85 | 21 |  | You Are Not So Smart | You Are Not So Smart | |
| 86 | 27 |  | Ancient Aliens | PodcastOne | |
| 87 | 21 | G | Green Noise | CapeNature | |
| 88 | 2 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 89 | 31 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 90 | 9 | R | RadioGraphics Podcast | RSNA | Radiological Society of North America (RSNA) | |
| 91 | 13 |  | Astrum Space | Astrum | |
| 92 | 14 |  | The Life Scientific | BBC Radio 4 | |
| 93 | 7 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 94 | 22 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 95 | 18 | ![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 | |
| 96 | 29 | R | RSPCA Animal Futures | RSPCA | |
| 97 | 35 |  | The world, the universe and us | New Scientist | |
| 98 | 73 |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 99 | 28 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 100 | 25 | U | Unpopular Neuroscience | Patrick D. Watson | |
