| 1 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 1 |  | Radiolab | WNYC Studios | |
| 4 | 2 |  | Science Vs | Spotify Studios | |
| 5 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 1 |  | Curious Cases | BBC Radio 4 | |
| 7 | 1 |  | Science Weekly | The Guardian | |
| 8 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 9 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 10 | 2 | O | Our Changing World | RNZ | |
| 11 | 5 |  | More or Less | BBC Radio 4 | |
| 12 | 2 |  | The world, the universe and us | New Scientist | |
| 13 | 32 |  | Physics World Weekly Podcast | Physics World | |
| 14 | 8 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 15 | 5 |  | Unexplainable | Vox | |
| 16 | 21 |  | CrowdScience | BBC World Service | |
| 17 | — |  | How We're Wired | The Bertarelli Foundation | |
| 18 | 7 |  | The Psychology Podcast | iHeartPodcasts | |
| 19 | 17 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 20 | 3 |  | You Are Not So Smart | You Are Not So Smart | |
| 21 | 6 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 22 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 23 | 10 | T | The Deep-Sea Podcast | Thomas Linley | |
| 24 | 1 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 25 | 40 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 26 | 5 |  | Short Wave | NPR | |
| 27 | 2 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 28 | 7 |  | Discovery | BBC World Service | |
| 29 | 14 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 30 | 15 |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 31 | 13 |  | BBC Inside Science | BBC Radio 4 | |
| 32 | 27 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 33 | 11 |  | All In The Mind | ABC | |
| 34 | 13 |  | Unexpected Elements | BBC World Service | |
| 35 | 10 |  | Science In Action | BBC World Service | |
| 36 | 49 |  | MinuteEarth | Minute Earth | |
| 37 | 18 |  | Every Animal Ever | Dr Cesar Puechmarin, Zach Mander | |
| 38 | 18 |  | ScienceStuff | iHeartPodcasts | |
| 39 | 95 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 40 | 103 |  | The Science of Everything Podcast | James Fodor | |
| 41 | 2 |  | Why Do We Do That? | BBC Radio 4 | |
| 42 | — |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 43 | 4 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 44 | 16 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 45 | — |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 46 | — |  | Invisibilia | NPR | |
| 47 | — |  | MinuteEarth | Minute Earth | |
| 48 | 1 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 49 | 25 | F | Farm Small Farm Smart Daily | The Modern Grower Podcast Network | |
| 50 | — | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 51 | — | H | Heal NPD | Mark Ettensohn, Psy.D. | |
| 52 | — | N | Not So Random Facts | Storyteller Entertainment | |
| 53 | — | E | Economics In Ten | Economics In Ten | |
| 54 | — | B | Bioethics on Air | National Catholic Bioethics Center | |
| 55 | — | W | Who We Are & What We Need | Catherine Quiring | |
| 56 | 26 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 57 | 15 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 58 | 24 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 59 | 21 |  | BrainStuff | iHeartPodcasts | |
| 60 | 28 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 61 | 28 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 62 | 22 | O | Open Country | BBC Radio 4 | |
| 63 | 66 |  | Dr Karl Podcast | triplej | |
| 64 | 60 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 65 | 19 |  | Outside/In | NHPR | |
| 66 | 32 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 67 | 1 |  | Blurry Creatures | Blurry Creatures | |
| 68 | 27 |  | I Was Prey | Animal Planet | |
| 69 | 1 |  | The Michael Shermer Show | Michael Shermer | |
| 70 | 6 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 71 | 31 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 72 | 21 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 73 | 19 |  | The Life Scientific | BBC Radio 4 | |
| 74 | 16 |  | The Story Collider | Story Collider, Inc. | |
| 75 | 19 |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 76 | 23 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 77 | 10 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 78 | 28 |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 79 | 31 |  | The Clean Energy Revolution | National Grid | |
| 80 | 29 | C | Clinical Hormone Studies (CHS) | Suraj Oruganti | |
| 81 | 29 |  | TED Talks Science and Medicine | TED | |
| 82 | 28 |  | The Pie: An Economics Podcast | Becker Friedman Institute at UChicago | |
| 83 | 28 |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 84 | 27 | P | Psychology | Yale School of Medicine | |
| 85 | 25 | F | Femmes d'exception | France Inter | |
| 86 | 25 | T | The SRS Podcast | Sleep Research Society | |
| 87 | 25 | T | The Qubit Guy's Podcast | Yuval Boger (a.k.a. The Qubit Guy) | |
| 88 | 25 | M | meet the meQuanics - Quantum Computing Discussions | meQuanics | |
| 89 | 25 | P | Psykiatrikerna | Anders Hansen och Simon Kyaga | |
| 90 | — |  | The Science Show | ABC | |
| 91 | 21 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 92 | 14 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 93 | 14 | ![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 | |
| 94 | 32 |  | Science Friday | Science Friday and WNYC Studios | |
| 95 | 22 |  | Overheard at National Geographic | National Geographic | |
| 96 | 27 | V | Voice of the Iceberg | RNZ | |
| 97 | 25 | N | Nature Sounds Tasmania | Nature Sounds Tasmania | |
| 98 | 15 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 99 | 36 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 100 | 29 |  | That UFO Podcast | That UFO Podcast | |
