| 1 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | 2 |  | Radiolab | WNYC Studios | |
| 4 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | 1 | I | Ideas of India | Mercatus Center at George Mason University | |
| 6 | 1 |  | Science Vs | Spotify Studios | |
| 8 | 11 |  | Unexplainable | Vox | |
| 9 | — |  | Astrum Space | Astrum | |
| 10 | 4 |  | Babbage from The Economist | The Economist | |
| 10 | 1 |  | Planet Em | Emily McDonald | |
| 10 | 2 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 11 | 3 | B | Boring History for Sleep | Velvet | |
| 12 | 15 |  | More or Less | BBC Radio 4 | |
| 13 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 14 | 9 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 16 | 29 |  | Curiosity Weekly | Discovery | |
| 17 | 4 |  | Pale Blue Pod | Multitude | |
| 18 | 2 |  | Science Friday | Science Friday and WNYC Studios | |
| 19 | 22 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 20 | 119 |  | The Climate Question | BBC World Service | |
| 21 | 8 |  | Science Weekly | The Guardian | |
| 23 | 9 | T | The Complete History of Science | Gethin Richards | |
| 24 | 1 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 25 | 3 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 26 | 2 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 27 | 7 |  | Curious Cases | BBC Radio 4 | |
| 28 | 11 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 29 | 6 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 30 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 31 | 93 |  | Unexpected Elements | BBC World Service | |
| 32 | 6 |  | Overheard at National Geographic | National Geographic | |
| 33 | 5 |  | Nature Podcast | Springer Nature Limited | |
| 34 | 1 |  | Discovery | BBC World Service | |
| 35 | 19 |  | Short Wave | NPR | |
| 36 | 21 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 37 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 38 | 20 |  | Furqan Qureshi Blogs | furqan Qureshi Blogs | |
| 39 | 11 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 41 | 3 |  | You Are Not So Smart | You Are Not So Smart | |
| 42 | 35 |  | Bedtime Astronomy | Synthetic Universe | |
| 43 | 31 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 44 | 76 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 45 | 5 | S | Sher Khan | Aaj Tak Radio | |
| 46 | 90 |  | New Books in Critical Theory | Marshall Poe | |
| 47 | 94 | T | The Language Neuroscience Podcast | Stephen M. Wilson | |
| 48 | 63 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 49 | 2 |  | Drilled | Pushkin Industries | |
| 50 | 34 |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 51 | 62 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 52 | 134 |  | From First Principles | Krishna Choudhary and Lester Nare | |
| 52 | — |  | Ask the Naked Scientists | Dr Chris Smith | |
| 53 | 11 |  | The Life Scientific | BBC Radio 4 | |
| 54 | 54 |  | The Future of Everything | Stanford Engineering | |
| 55 | 142 |  | Neuroscience of Everything | Dr Nand Muley, Ph.D. | |
| 56 | 3 |  | The Quanta Podcast | Quanta Magazine | |
| 57 | 81 |  | American Journal of Ophthalmology Podcasts Collection | Various | |
| 58 | 48 |  | EarthWise | Vivaan Mathur | |
| 59 | 17 |  | This Week in Cardiology | Medscape | |
| 59 | — |  | Evolutionary Psychology (the podcast) | Dave Pietraszewski & David Pinsof | |
| 60 | 24 |  | Let's Learn Everything! | Maximum Fun | |
| 61 | 15 |  | The Psychology Podcast | iHeartPodcasts | |
| 61 | — | H | Hoos in STEM | STEM Advisor to the Provost at the University of Virginia | |
| 62 | 81 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 63 | — | M | Molecular Podcasting with Darren Lipomi | Darren Lipomi | |
| 64 | — |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 65 | 26 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 66 | 9 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 67 | 3 |  | The Science of Everything Podcast | James Fodor | |
| 68 | 114 |  | Pediatric Research Podcast | Nature Publishing Group | |
| 70 | 90 |  | This Week in Neuroscience | Vincent Racaniello | |
| 71 | 119 | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 72 | 92 |  | The Astrophysics Podcast | Paul Duffell | |
| 72 | 44 |  | A Question of Science | The Francis Crick Institute | |
| 73 | 94 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 74 | 43 |  | The Michael Shermer Show | Michael Shermer | |
| 75 | 26 |  | CrowdScience | BBC World Service | |
| 76 | 85 |  | Ancient Aliens | PodcastOne | |
| 77 | — |  | The Numberphile Podcast | Brady Haran | |
| 78 | 56 |  | The Adventurer's | TheAdventurers | |
| 78 | — |  | Unsung Science | CBS News | |
| 79 | 73 |  | Mind & Life | Mind & Life Institute | |
| 79 | — | G | Getting to Know You | Pediatric Dermatology Research Alliance | |
| 80 | — | D | Derm Insider | Practical Dermatology | |
| 81 | 51 |  | Speaking of Psychology | American Psychological Association | |
| 82 | 31 | M | My Favorite Theorem | Kevin Knudson & Evelyn Lamb | |
| 83 | 96 | I | Influence Psychology and Persuasion - Mike Sweet - 10 Minute Coach - Develop and Discover | Mike Sweet | |
| 83 | — | T | The SHEA Podcast | The SHEA Podcast | |
| 84 | — |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 85 | — |  | Geology Bites | Oliver Strimpel | |
| 86 | — |  | The ICHE Podcast | The ICHE Podcast | |
| 87 | — | L | Logically Answered | Logically Answered | |
| 88 | — | T | Two Paeds In A Pod | Dr Ian Lewins | |
| 89 | — | E | Experimental History | Adam Mastroianni | |
| 90 | — | F | Full PreFrontal: Exposing the Mysteries of Executive Function | Sucheta Kamath | |
| 91 | — | C | CME in Minutes: Education in Dermatology | Answers in CME | |
| 92 | — | T | The Practical Dermatology Podcast | Practical Dermatology | |
| 93 | — | R | Royal Belgian Society of Dermatology and Venereology's podcast | Royal Belgian Society of Dermatology and Venereology | |
| 94 | — | P | PeDRA Pearls | Pediatric Dermatology Research Alliance | |
| 95 | — | T | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 96 | — | S | Stories of Our Skin | International Alliance for Global Health Dermatology (GLODERM) | |
