| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 1 |  | Unexplainable | Vox | |
| 4 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | Radiolab | WNYC Studios | |
| 6 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 3 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 9 | 3 |  | Speaking of Psychology | American Psychological Association | |
| 10 | 2 |  | Curious Cases | BBC Radio 4 | |
| 11 | 87 |  | Blurry Creatures | Blurry Creatures | |
| 12 | 5 |  | Alive Again | iHeartPodcasts | |
| 13 | 7 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 14 | 4 |  | More or Less | BBC Radio 4 | |
| 15 | 14 |  | Short Wave | NPR | |
| 16 | 47 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 17 | 11 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 18 | 7 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 19 | 57 |  | All In The Mind | ABC | |
| 20 | 12 |  | The Psychology Podcast | iHeartPodcasts | |
| 21 | 7 |  | Science Vs | Spotify Studios | |
| 22 | 3 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 23 | — |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 24 | 163 |  | That's Just Wild | Fresh Air | |
| 25 | 154 | E | Educational Psychology for Everyone! | Katja Upadyaya (University of Helsinki) | |
| 26 | — | G | Green Noise | CapeNature | |
| 27 | — | B | Becoming a Medical Examiner | Erik Handberg, MD | |
| 28 | — |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 29 | — | R | Rapids by Songs 4 FRCR | Songs 4 FRCR Rapids | |
| 30 | — |  | The SIREN Podcast | Social Interventions Research and Evaluation Network | |
| 31 | 8 |  | The Science of Birds | Ivan Phillipsen | |
| 32 | 2 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 33 | 15 |  | Science Weekly | The Guardian | |
| 34 | 21 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 35 | 25 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 36 | 20 |  | Overheard at National Geographic | National Geographic | |
| 37 | — |  | The Science of Everything Podcast | James Fodor | |
| 38 | 23 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 39 | 79 |  | The Michael Shermer Show | Michael Shermer | |
| 40 | 136 |  | Invisibilia | NPR | |
| 41 | 16 |  | Origin Stories | The Leakey Foundation | |
| 42 | 91 |  | Science In Action | BBC World Service | |
| 43 | — |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 44 | 20 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 45 | — |  | Physics World Weekly Podcast | Physics World | |
| 46 | 24 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 47 | 26 |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 48 | — |  | Bugs Need Heroes | BugsNeedHeroes | |
| 49 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 50 | — |  | Future Ecologies | Future Ecologies | |
| 51 | — |  | The Horse First: A Veterinary Sport Horse Podcast | Audrey DeClue, DVM | |
| 52 | — | S | SNACC Podcast | SNACC | |
| 53 | — |  | The Fossil Files | Robert Sansom and Susannah Maidment | |
| 54 | 31 | A | AquaPod: Water Monitoring Stories from the Field | In-Situ | |
| 55 | 22 |  | Universe Today Podcast | Fraser Cain | |
| 56 | 29 | T | The Universe Speaks in Numbers | Faber and Faber | |
| 57 | 26 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 58 | 32 |  | New Books in Critical Theory | Marshall Poe | |
| 59 | 24 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 60 | 8 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 61 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 62 | 26 |  | CrowdScience | BBC World Service | |
| 63 | 23 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 64 | 9 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 65 | 31 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 66 | 6 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 67 | 16 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 68 | 30 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 69 | 27 |  | Living Planet | DW | |
| 70 | 33 | N | New Books in Science | New Books Network | |
| 71 | 30 | 1 | 1000 Antworten | SWR | |
| 72 | 29 | D | Doing Time, Talking Crime | Max Planck Institute for the Study of Crime, Security and Law | |
| 73 | 29 | N | New Books in Anthropology | New Books Network | |
| 74 | 29 | T | The Show About Science | Nate | The Company Making Podcasts | |
| 75 | 29 | T | The Deep-Sea Podcast | Thomas Linley | |
| 76 | 29 | T | The Surgery Talks Podcast | Surgery Talks Team | |
| 77 | 29 |  | Misguided: The Podcast | Matthew Facciani | |
| 78 | 29 |  | Weird & Dead | Amy Atwater and Meaghan Wetherell | |
| 79 | 4 |  | Science Friday | Science Friday and WNYC Studios | |
| 80 | 30 | S | Students of Surgery | Martin Brand | |
| 81 | 26 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 82 | 31 |  | Believing the Bizarre: Paranormal Podcast | Tyler and Charlie | |
| 83 | 19 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 84 | 27 | T | The Naked Scientists Podcast | The Naked Scientists | |
| 85 | 20 |  | BrainStuff | iHeartPodcasts | |
| 86 | 33 |  | TED Talks Science and Medicine | TED | |
| 87 | 33 | D | Data Science Decoded | Mike E | |
| 88 | 49 |  | That UFO Podcast | That UFO Podcast | |
| 89 | 37 |  | The Orthobullets Podcast | Orthobullets | |
| 90 | — |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 91 | 24 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 92 | 3 |  | The Life Scientific | BBC Radio 4 | |
| 93 | 35 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 94 | 33 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 95 | 39 |  | Science of Perception Box | Unlikely Collaborators | Pod People | |
| 96 | 34 |  | The Pie: An Economics Podcast | Becker Friedman Institute at UChicago | |
| 97 | 20 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 98 | 32 |  | Sustainability, Climate Change, Renewable Energy, Politics, Activism, Biodiversity, Carbon Footprint, Wildlife, Regenerative | Mia Funk | |
| 99 | 31 | T | The Art of Mathematics | Carol Jacoby | |
| 100 | 31 |  | Naturebang | BBC Radio 4 | |
