| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 6 | 1 | I | Ideas of India | Mercatus Center at George Mason University | |
| 7 | 1 |  | Science Vs | Spotify Studios | |
| 8 | 3 | B | Boring History for Sleep | Velvet | |
| 9 | 4 |  | Astrum Space | Astrum | |
| 10 | 17 |  | EarthWise | Vivaan Mathur | |
| 11 | 2 |  | Planet Em | Emily McDonald | |
| 12 | 6 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 13 | 6 |  | Making Sense with Sam Harris | Sam Harris | |
| 14 | 7 |  | Babbage from The Economist | The Economist | |
| 15 | 1 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 16 | 1 |  | Short Wave | NPR | |
| 17 | — |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 18 | 161 |  | Furqan Qureshi Blogs | furqan Qureshi Blogs | |
| 19 | 9 |  | Unexplainable | Vox | |
| 20 | 8 |  | Science Friday | Science Friday and WNYC Studios | |
| 21 | 42 |  | Pale Blue Pod | Multitude | |
| 22 | 11 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 23 | 9 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 24 | 3 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 25 | 31 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 26 | — |  | Overheard at National Geographic | National Geographic | |
| 27 | 15 |  | More or Less | BBC Radio 4 | |
| 28 | 17 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 29 | 18 |  | Science Weekly | The Guardian | |
| 30 | 7 |  | Speaking of Psychology | American Psychological Association | |
| 31 | 16 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 32 | — | T | The Complete History of Science | Gethin Richards | |
| 33 | 15 |  | Discovery | BBC World Service | |
| 34 | 1 |  | Curious Cases | BBC Radio 4 | |
| 35 | 31 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 36 | 18 |  | Let's Learn Everything! | Maximum Fun | |
| 38 | 11 |  | Nature Podcast | Springer Nature Limited | |
| 39 | 132 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 40 | 8 | S | Sher Khan | Aaj Tak Radio | |
| 41 | 9 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 42 | 22 |  | The Life Scientific | BBC Radio 4 | |
| 43 | 27 |  | BBC Inside Science | BBC Radio 4 | |
| 44 | 11 |  | You Are Not So Smart | You Are Not So Smart | |
| 45 | 7 |  | Curiosity Weekly | Discovery | |
| 46 | 24 |  | The Psychology Podcast | iHeartPodcasts | |
| 47 | 2 |  | Drilled | Pushkin Industries | |
| 48 | 83 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 49 | 10 |  | CrowdScience | BBC World Service | |
| 51 | 2 | M | My Favorite Theorem | Kevin Knudson & Evelyn Lamb | |
| 52 | 40 | W | What Is Life? | Carl Zimmer | |
| 53 | 29 |  | The Quanta Podcast | Quanta Magazine | |
| 54 | 90 |  | The Sociology of Everything Podcast | Eric Hsu & Louis Everuss (Lou & the Hsu) | |
| 55 | 31 | E | Emergency Medicine Clinics (Elsevier) | Emergency Medicine Clinics | |
| 56 | 5 | T | The Rearview | The Hindu | |
| 57 | 17 |  | Living Planet | DW | |
| 58 | 23 |  | Science Magazine Podcast | Science Magazine | |
| 59 | 28 |  | Evolutionary Psychology (the podcast) | Dave Pietraszewski & David Pinsof | |
| 60 | — |  | Safer Chemicals Podcast | European Chemicals Agency | |
| 61 | — | H | Hoos in STEM | STEM Advisor to the Provost at the University of Virginia | |
| 62 | — |  | Stereo Chemistry | Chemical & Engineering News | |
| 63 | 14 | V | VoxTalks Economics | VoxTalks | |
| 64 | 37 |  | The Science of Everything Podcast | James Fodor | |
| 65 | — |  | The Green Room: A Podcast from Obstetrics & Gynecology | Obstetrics & Gynecology (Green Journal) | |
| 66 | 115 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 67 | 10 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 68 | — | E | Economics In Ten | Economics In Ten | |
| 70 | 37 |  | Mysterious Universe | 8th Kind | |
| 71 | — | R | Relativity: The Special & General Theory | Albert Einstein | |
| 72 | — |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 73 | 15 |  | Infectious Disease Puscast | Vincent Racaniello | |
| 74 | 26 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 75 | 35 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 76 | 44 |  | This Week in Cardiology | Medscape | |
| 77 | 36 |  | Bedtime Astronomy | Synthetic Universe | |
| 78 | — | M | Mr.GK Podcast | Mr.GK Podcast | |
| 79 | — | B | Blood Podcast | American Society of Hematology | |
| 80 | — |  | UAP Files Podcast | UAP Files Podcast | |
| 81 | — |  | Let's Talk ID | Infectious Diseases Society of America (IDSA) | |
| 82 | — | C | Cryptography FM | Symbolic Software | |
| 83 | 99 | T | The SHEA Podcast | The SHEA Podcast | |
| 84 | 47 |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 85 | — | S | Sociology Sessions | A Sociology Experiment | |
| 86 | — |  | The ICHE Podcast | The ICHE Podcast | |
| 87 | — |  | The Episodic Table of Elements | T. R. Appleton | |
| 88 | — |  | The 365 Days of Astronomy | 365DaysOfAstronomy.org | |
| 89 | — | E | eanCast: Weekly Neurology | ean.org | |
| 90 | — | S | Space | BBC World Service | |
| 91 | — | N | New Books in Mathematics | Marshall Poe | |
| 92 | — |  | Conversations in Obstetrics and Gynecology | Unknown | |
| 93 | — | T | The Hematologist | The Hematologist | |
| 95 | — |  | Frankly Speaking About Family Medicine | Pri-Med | |
| 96 | — | L | Les idées larges | ARTE Radio | |
| 96 | 82 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 97 | — |  | BioSpace | BioSpace | |
| 97 | — | C | COR2ED - Obstetrics & Gynecology Medical Conversation Video | COR2ED Medical Education | |
| 99 | — | ![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 | |
| 100 | — | I | Idéer som förändrar världen | Nobel Prize Museum | |
| 101 | — |  | Science unscripted | DW | |
| 101 | — | P | Podmedics | Dr Ed Wallitt | |
| 102 | — | B | Battery Potential | Cyclikal LLC | |
| 102 | — | W | Whastic | Rishi Arora | |
