| 1 | — |  | The Threshold | Foreign Policy | |
| 2 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 4 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | — |  | Science Vs | Spotify Studios | |
| 6 | 17 |  | Making Sense with Sam Harris | Sam Harris | |
| 6 | — |  | Unexplainable | Vox | |
| 7 | — | I | Ideas of India | Mercatus Center at George Mason University | |
| 7 | 1 | S | Sher Khan | Aaj Tak Radio | |
| 7 | 2 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 8 | 4 |  | Curious Cases | BBC Radio 4 | |
| 8 | — | B | Boring History for Sleep | Velvet | |
| 9 | — |  | Babbage from The Economist | The Economist | |
| 10 | 8 |  | Science Friday | Science Friday and WNYC Studios | |
| 10 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 12 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 13 | — |  | Science Weekly | The Guardian | |
| 13 | 9 |  | CrowdScience | BBC World Service | |
| 14 | — |  | BBC Inside Science | BBC Radio 4 | |
| 14 | 6 |  | Astrum Space | Astrum | |
| 15 | 10 |  | Nature Podcast | Springer Nature Limited | |
| 15 | 1 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 16 | 4 |  | Discovery | BBC World Service | |
| 18 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 19 | 3 |  | Overheard at National Geographic | National Geographic | |
| 20 | 19 |  | More or Less | BBC Radio 4 | |
| 24 | 13 |  | Unexpected Elements | BBC World Service | |
| 24 | 3 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 24 | — |  | Geology Bites | Oliver Strimpel | |
| 25 | 6 |  | Science In Action | BBC World Service | |
| 26 | 10 |  | The Quanta Podcast | Quanta Magazine | |
| 26 | — |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 27 | 25 |  | Curiosity Weekly | Discovery | |
| 28 | 58 |  | You Are Not So Smart | You Are Not So Smart | |
| 28 | — |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 29 | — |  | The Life Scientific | BBC Radio 4 | |
| 31 | 1 |  | From First Principles | Krishna Choudhary and Lester Nare | |
| 33 | 3 |  | Science Quickly | Scientific American | |
| 33 | 8 |  | The world, the universe and us | New Scientist | |
| 33 | 18 |  | The Astrophysics Podcast | Paul Duffell | |
| 34 | 1 |  | Instant Genius | Our Media | |
| 34 | 25 |  | New Books in Critical Theory | Marshall Poe | |
| 35 | 4 |  | Universe Today Podcast | Fraser Cain | |
| 35 | 28 |  | EarthWise | Vivaan Mathur | |
| 36 | 4 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 37 | 14 |  | This Week in Cardiology | Medscape | |
| 38 | 5 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 38 | 105 |  | The Common Descent Podcast | Common Descent | |
| 39 | 3 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 39 | 46 |  | SciShow Tangents | Complexly | |
| 39 | — | N | Nullius in Verba | Smriti Mehta and Daniël Lakens | |
| 40 | 43 | T | The India Energy Hour Presented by 101Reporters | 101Reporters | |
| 40 | 34 | S | Sociology Sessions | A Sociology Experiment | |
| 41 | — |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 42 | — |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 43 | 3 |  | BrainStuff | iHeartPodcasts | |
| 44 | 3 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 44 | — |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 45 | 80 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 46 | 67 |  | Behavioral Grooves Podcast | Kurt Nelson, PhD and Tim Houlihan | |
| 46 | 3 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 47 | 20 |  | The Psychology Podcast | iHeartPodcasts | |
| 49 | 1 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 50 | 80 | E | Economics In Ten | Economics In Ten | |
| 50 | 113 | E | Emergency Medicine Clinics (Elsevier) | Emergency Medicine Clinics | |
| 50 | 143 |  | The Energy Podcast | Shell | |
| 51 | 101 | O | Oscilador Armónico | OsciladorArmónico | |
| 51 | 25 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 53 | 10 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 53 | 27 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 53 | 6 |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 54 | 6 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 55 | 6 |  | The Alpha Male Coach Podcast | Kevin Aillaud | |
| 55 | 56 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 56 | — |  | Science Magazine Podcast | Science Magazine | |
| 57 | 7 |  | Physics World Weekly Podcast | Physics World | |
| 57 | 24 |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 58 | 6 | F | From Our Neurons to Yours | Wu Tsai Neurosciences Institute at Stanford University, Nicholas Weiler | |
| 59 | 119 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 59 | 11 | T | The Climate Show | Berg-Streaming | |
| 60 | 10 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 60 | 7 |  | Big Picture Science | Big Picture Science | |
| 60 | 98 | M | Mathematics Simplified | Anjali Sharma | |
| 61 | 72 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 61 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 61 | 7 | T | Talking Apes | GLOBIO | |
| 63 | — | G | Great Talks at American Philosophical Society | American Philosophical Society | |
| 63 | 29 | E | Editors in Conversation | American Society for Microbiology | |
| 64 | 7 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 65 | 6 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 65 | — | T | The American Society of Pediatric Nephrology Podcast | American Society of Pediatric Nephrology | |
| 66 | 13 |  | The Optispan Podcast with Matt Kaeberlein | Optispan | |
| 67 | 30 |  | All In The Mind | ABC | |
| 67 | — |  | Sternengeschichten | Florian Freistetter | |
| 68 | 80 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 69 | 6 |  | Rare Earth | BBC Radio 4 | |
| 70 | 1 |  | Das Wissen | SWR | SWR | |
| 70 | 5 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 70 | 3 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 70 | 19 | T | The Hematologist | The Hematologist | |
