| 1 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 1 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 1 |  | Radiolab | WNYC Studios | |
| 4 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 4 | — |  | Unexplainable | Vox | |
| 5 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 1 |  | Science Vs | Spotify Studios | |
| 6 | 1 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 8 | 6 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | 2 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 9 | — | B | Boring History for Sleep | Velvet | |
| 10 | 5 |  | Science Weekly | The Guardian | |
| 11 | 9 |  | Discovery | BBC World Service | |
| 11 | 3 |  | The Threshold | Foreign Policy | |
| 12 | 14 |  | Curious Cases | BBC Radio 4 | |
| 12 | 47 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 12 | 3 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 13 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 13 | — |  | Overheard at National Geographic | National Geographic | |
| 13 | 18 |  | Astrum Space | Astrum | |
| 14 | 1 |  | The Psychology Podcast | iHeartPodcasts | |
| 15 | 2 |  | Speaking of Psychology | American Psychological Association | |
| 16 | 4 |  | This Week in Cardiology | Medscape | |
| 17 | 4 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 18 | 11 | I | Ideas of India | Mercatus Center at George Mason University | |
| 21 | 3 |  | BBC Inside Science | BBC Radio 4 | |
| 21 | 14 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 22 | 4 |  | Babbage from The Economist | The Economist | |
| 24 | 1 |  | Unexpected Elements | BBC World Service | |
| 24 | — |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 25 | 15 |  | More or Less | BBC Radio 4 | |
| 25 | 1 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 25 | — |  | The Astrophysics Podcast | Paul Duffell | |
| 26 | — |  | Science Quickly | Scientific American | |
| 27 | 13 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 28 | 6 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 30 | 81 |  | Physics World Weekly Podcast | Physics World | |
| 32 | 1 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 33 | 10 |  | Science Friday | Science Friday and WNYC Studios | |
| 33 | — |  | CrowdScience | BBC World Service | |
| 34 | 4 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 35 | 8 |  | Ask a Spaceman! | Paul M. Sutter | |
| 35 | 8 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 36 | — |  | The Quanta Podcast | Quanta Magazine | |
| 37 | 13 |  | Curiosity Weekly | Discovery | |
| 38 | 11 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 39 | 2 |  | SciShow Tangents | Complexly | |
| 39 | 5 |  | Origin Stories | The Leakey Foundation | |
| 40 | 1 |  | TED Talks Science and Medicine | TED | |
| 42 | 2 |  | Instant Genius | Our Media | |
| 44 | 47 | T | TTBOOK Presents: Deep Time | To The Best Of Our Knowledge | |
| 44 | 20 |  | Science In Action | BBC World Service | |
| 45 | 19 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 45 | 8 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 46 | 34 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 46 | 15 | C | Conversations at the Perimeter | Perimeter Institute | |
| 48 | 25 |  | All In The Mind | ABC | |
| 49 | 4 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 50 | — |  | Conversations in Obstetrics and Gynecology | Unknown | |
| 51 | — |  | A Question of Science | The Francis Crick Institute | |
| 51 | 63 | T | The Rearview | The Hindu | |
| 52 | 13 |  | Science Magazine Podcast | Science Magazine | |
| 53 | — | C | Clinical neurology with KD | Krishnadas N C | |
| 53 | 2 |  | Raising Health | Andreessen Horowitz, a16z Bio + Health | |
| 53 | 7 |  | BrainStuff | iHeartPodcasts | |
| 54 | 5 |  | EarthWise | Vivaan Mathur | |
| 54 | 3 |  | Wissen Weekly | Spotify Studios | |
| 54 | — |  | This Week in Microbiology | Vincent Racaniello | |
| 55 | 5 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 55 | — |  | Frankly Speaking About Family Medicine | Pri-Med | |
| 56 | 20 |  | Das Wissen | SWR | SWR | |
| 56 | 8 |  | The Parkinson's Podcast | Davis Phinney Foundation | |
| 57 | 6 |  | You Are Not So Smart | You Are Not So Smart | |
| 58 | 22 |  | Nature Podcast | Springer Nature Limited | |
| 59 | 8 | A | Anatomy On The Go | Seth Jump | |
| 61 | — |  | Bedtime Astronomy | Synthetic Universe | |
| 61 | 10 | N | New Books in Economics | Marshall Poe | |
| 64 | 10 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 65 | 8 |  | The world, the universe and us | New Scientist | |
| 65 | — | S | Sekke Podcast | پادکست سکه | mehdi naji | |
| 65 | 21 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 66 | 20 |  | Let's Learn Everything! | Maximum Fun | |
| 66 | — |  | Diabetes Insights - Breakthroughs and Innovators | EASD - European Association for the Study of Diabetes | |
| 67 | — | R | Research Radio | Economic and Political Weekly | |
| 67 | 13 | S | Space | BBC World Service | |
| 68 | — |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 68 | — | K | Kalakki - The Tamil podcast | kalakki | |
| 69 | 4 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 69 | — | T | The Roots of Reality | Philip Randolph Lilien | |
| 70 | — |  | پادکست آذرخش مکری - azarakhsh mokri | nimac | |
| 70 | — | D | Daily Paper Cast | Jingwen Liang, Gengyu Wang | |
| 72 | 9 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 73 | 43 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 75 | 20 |  | The Common Descent Podcast | Common Descent | |
| 75 | 5 |  | Big Brains | University of Chicago Podcast Network | |
| 76 | 45 | P | Philosophy | Cambridge University | |
| 77 | 25 |  | The Michael Shermer Show | Michael Shermer | |
| 77 | 43 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 78 | 53 |  | La Science, CQFD | France Culture | |
| 78 | 22 | W | WCS Wild Audio | Wildlife Conservation Society | |
