| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | Radiolab | WNYC Studios | |
| 5 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | — |  | Curious Cases | BBC Radio 4 | |
| 8 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 1 |  | Unexplainable | Vox | |
| 10 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 11 | 59 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 12 | 1 |  | Science Vs | Spotify Studios | |
| 13 | 16 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 14 | — |  | Living Planet | DW | |
| 15 | 2 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 16 | 151 |  | All In The Mind | ABC | |
| 17 | 2 |  | New Books in Critical Theory | Marshall Poe | |
| 18 | 2 |  | The Science of Everything Podcast | James Fodor | |
| 19 | 147 | T | Thinking Allowed | BBC Radio 4 | |
| 20 | 3 |  | Speed & Scale | TED | |
| 21 | 23 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 22 | 10 |  | Blurry Creatures | Blurry Creatures | |
| 23 | 5 |  | CrowdScience | BBC World Service | |
| 24 | 40 |  | Science Weekly | The Guardian | |
| 25 | 10 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 26 | 14 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 27 | 3 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 28 | 32 |  | Overheard at National Geographic | National Geographic | |
| 29 | 30 |  | The Couples Therapist Couch | Shane Birkel | |
| 30 | 17 |  | Nature Podcast | Springer Nature Limited | |
| 31 | — |  | UFO Witnesses | UFO Witnesses | |
| 32 | — |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 33 | 25 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 34 | 49 |  | Science Friday | Science Friday and WNYC Studios | |
| 35 | 9 |  | BBC Inside Science | BBC Radio 4 | |
| 36 | 35 |  | The Climate Question | BBC World Service | |
| 37 | 31 | M | Mathematics Simplified | Anjali Sharma | |
| 38 | 78 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 39 | 20 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 40 | 9 |  | Das Wissen | SWR | SWR | |
| 41 | 52 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 42 | 22 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 43 | 21 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 44 | 23 |  | Short Wave | NPR | |
| 45 | 11 |  | BrainStuff | iHeartPodcasts | |
| 46 | 73 |  | Accidental Gods | Accidental Gods | |
| 47 | 94 |  | Robinson's Podcast | Robinson Erhardt | |
| 48 | 69 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 49 | — | S | Sero Boost: The Happiness Science Insights Podcast | LMSL | |
| 50 | 109 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 51 | 100 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 52 | 112 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 53 | — | C | Circulation on the Run | Greg Hundley, MD and Peder Myhre, MD, PhD | |
| 54 | — | N | National Geographic Magazine | Radio Eye | |
| 55 | 106 | U | Understanding Society | Cambridge University | |
| 56 | — |  | The Quanta Podcast | Quanta Magazine | |
| 57 | 30 | H | Hopkins Biotech Podcast | Hopkins Biotech Podcast | |
| 58 | — | E | Easy Physics | Easy Physics | |
| 59 | 45 |  | Science In Action | BBC World Service | |
| 60 | — |  | Rare Earth | BBC Radio 4 | |
| 61 | — |  | Chemistry Made Simple | Matthew Macariou | |
| 62 | — |  | The History of Chemistry | Steve Cohen | |
| 63 | — |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 64 | — | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 65 | — |  | The Episodic Table of Elements | T. R. Appleton | |
| 66 | — | P | Physics World Stories Podcast | Physics World | |
| 67 | 39 |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 68 | — |  | Great Mysteries of Physics | The Conversation | |
| 69 | — | E | Exploring Astrophysics | Vikram Bhamre | |
| 70 | — | M | Military Psychology Podcast | Division 19 | |
| 71 | 47 | W | Wildest Kruger Stories | Karolina Norée | |
| 72 | 40 |  | The world, the universe and us | New Scientist | |
| 73 | 32 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 74 | 37 |  | Discovery | BBC World Service | |
| 75 | 13 |  | Unexpected Elements | BBC World Service | |
| 76 | 51 |  | The Psychology Podcast | iHeartPodcasts | |
| 77 | 44 | S | Simplifying Complexity | Sean Brady from Brady Heywood | |
| 78 | 15 |  | Big Picture Science | Big Picture Science | |
| 79 | 28 |  | Cosmos In You - Guide to Inner Space | Suzannah Scully | |
| 80 | — |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 81 | 45 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 82 | 43 |  | The Michael Shermer Show | Michael Shermer | |
| 83 | 45 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 84 | 41 |  | Somewhere in the Skies | SpectreVision Radio | |
| 85 | 35 | A | African Cities | African Cities Research Consortium | |
| 86 | 41 |  | TED Talks Science and Medicine | TED | |
| 87 | 6 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 88 | 46 |  | Night Science | Itai Yanai & Martin Lercher | |
| 89 | 36 |  | This Week in Virology | Vincent Racaniello | |
| 90 | 44 |  | Sasquatch Tracks | Micah Hanks, Dakota Waddell and Jeff Smith | |
| 91 | 44 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 92 | 44 | H | How To Protect The Ocean | Andrew Lewin | |
| 93 | 44 |  | The Numberphile Podcast | Brady Haran | |
| 94 | 41 |  | How We're Wired | The Bertarelli Foundation | |
| 95 | 43 | M | Modern Physics: The Theoretical Minimum - Quantum Mechanics | Stanford Continuing Studies Program | |
| 96 | 42 |  | Pale Blue Pod | Multitude | |
| 97 | 41 |  | Brave New Planet | Pushkin Industries | |
| 98 | 43 | T | Talks On Psychoanalysis | International Psychoanalytical Association | |
| 99 | 72 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 100 | 43 |  | The Story Collider | Story Collider, Inc. | |
