| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | Radiolab | WNYC Studios | |
| 4 | 2 | I | Ideas of India | Mercatus Center at George Mason University | |
| 5 | 3 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 6 | 3 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 7 | 136 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 8 | 4 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 9 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 10 | 4 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 11 | 34 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 12 | 5 |  | Making Sense with Sam Harris | Sam Harris | |
| 13 | 3 | B | Boring History for Sleep | Velvet | |
| 14 | 6 |  | Science Vs | Spotify Studios | |
| 15 | 40 |  | EarthWise | Vivaan Mathur | |
| 16 | 7 |  | The Quanta Podcast | Quanta Magazine | |
| 17 | 10 |  | Unexplainable | Vox | |
| 18 | 5 |  | Short Wave | NPR | |
| 19 | 3 |  | The Psychology Podcast | iHeartPodcasts | |
| 20 | 13 |  | MinuteEarth | Minute Earth | |
| 21 | 10 |  | Overheard at National Geographic | National Geographic | |
| 22 | 9 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 23 | 17 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 24 | 24 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 25 | — |  | CrowdScience | BBC World Service | |
| 26 | 12 |  | Science Friday | Science Friday and WNYC Studios | |
| 27 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 28 | 34 |  | The Sociology of Everything Podcast | Eric Hsu & Louis Everuss (Lou & the Hsu) | |
| 29 | 14 |  | Unexpected Elements | BBC World Service | |
| 30 | 57 |  | The Astrophysics Podcast | Paul Duffell | |
| 31 | 15 |  | Science Weekly | The Guardian | |
| 32 | 110 |  | IQ - Wissenschaft und Forschung | Bayerischer Rundfunk | |
| 33 | — |  | The 365 Days of Astronomy | 365DaysOfAstronomy.org | |
| 34 | 12 |  | Discovery | BBC World Service | |
| 35 | 73 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 36 | 57 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 37 | 7 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 38 | 100 |  | Ask a Spaceman! | Paul M. Sutter | |
| 39 | 124 |  | H2TechTalk | H2Tech | |
| 40 | — |  | The History of Chemistry | Steve Cohen | |
| 41 | — | P | PsyDactic | T. Ryan O'Leary | |
| 42 | 119 |  | Drilled | Pushkin Industries | |
| 43 | 108 |  | Speed & Scale | TED | |
| 44 | 26 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 45 | 92 |  | Universe Today Podcast | Fraser Cain | |
| 46 | — |  | Materialism: A Materials Science Podcast | Taylor Sparks and Andrew Falkowski | |
| 47 | — | T | The Immunology Podcast | The Immunology Podcast | |
| 48 | — |  | Archaic Humans | Jason Hepola | |
| 49 | 25 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 50 | — |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 51 | — |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 52 | 17 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 53 | 34 | M | Molecule to Market: Inside the outsourcing space | Raman Sehgal | |
| 54 | — |  | Subject to | Anand Subramanian | |
| 55 | — | T | The Clinical Research Podcast | Research & Innovation | |
| 56 | — |  | This Week in Space (Audio) | TWiT | |
| 57 | 36 |  | The House of Surgery | The American College of Surgeons | |
| 58 | 10 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 59 | 31 |  | Babbage from The Economist | The Economist | |
| 60 | 37 | N | Neurosurgery Podcast | Neurosurgery Podcast | |
| 61 | 27 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 62 | 122 |  | Das Wissen | SWR | SWR | |
| 63 | 92 |  | The Michael Shermer Show | Michael Shermer | |
| 64 | 8 |  | Speaking of Psychology | American Psychological Association | |
| 65 | 35 |  | New Books in Critical Theory | Marshall Poe | |
| 66 | 69 | P | Physics World Stories Podcast | Physics World | |
| 67 | 57 |  | Origin Stories | The Leakey Foundation | |
| 68 | 36 |  | Physics World Weekly Podcast | Physics World | |
| 69 | 126 |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 70 | — |  | Hard Drugs | Saloni Dattani & Jacob Trefethen | |
| 71 | 124 |  | The Numberphile Podcast | Brady Haran | |
| 72 | 40 | O | Our Changing World | RNZ | |
| 73 | 19 | T | The India Energy Hour Presented by 101Reporters | 101Reporters | |
| 74 | — | گ | گوش نیوش های دکتر شیری | Dr. Shiri | |
| 75 | 10 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 76 | 47 |  | Science In Action | BBC World Service | |
| 77 | 19 | S | Sher Khan | Aaj Tak Radio | |
| 78 | 110 |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 79 | 22 |  | All In The Mind | ABC | |
| 80 | 12 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 81 | 85 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 82 | 56 |  | TED Talks Science and Medicine | TED | |
| 83 | — |  | Mystères et étoiles | Zebroloss | |
| 84 | — | W | Waarom? Daarom! | Qmusic | |
| 85 | 11 |  | Nature Podcast | Springer Nature Limited | |
| 86 | 49 | T | The Surgery Talks Podcast | Surgery Talks Team | |
| 87 | 51 | E | elsa podcast | English Longitudinal Study of Ageing | |
| 88 | 38 |  | More or Less | BBC Radio 4 | |
| 89 | 1 |  | Astrum Space | Astrum | |
| 90 | 51 | C | Curiosity Unbounded | Massachusetts Institute of Technology (MIT) | |
| 91 | — |  | Sustainability, Climate Change, Renewable Energy, Politics, Activism, Biodiversity, Carbon Footprint, Wildlife, Regenerative | Mia Funk | |
| 92 | — | S | Students of Surgery | Martin Brand | |
| 93 | — |  | Aha! Zehn Minuten Alltags-Wissen | WELT | |
| 94 | — |  | From First Principles | Krishna Choudhary and Lester Nare | |
| 95 | 54 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 96 | 54 | C | Clinical neurology with KD | Krishnadas N C | |
| 97 | 54 |  | Ground Truths | Eric Topol | |
| 98 | 47 | R | Radiology Podcast | RSNA | The Radiological Society of North America | |
| 99 | 35 |  | Curiosity Weekly | Discovery | |
| 100 | 39 |  | This Week in Cardiology | Medscape | |
