| 1 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | — |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 5 | 2 |  | Quirks and Quarks | CBC | |
| 6 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | 1 |  | Science Vs | Spotify Studios | |
| 8 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 9 | 2 | W | White Coat, Black Art | CBC | |
| 10 | — |  | ScienceStuff | iHeartPodcasts | |
| 11 | 3 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 12 | 3 |  | Instant Genius | Our Media | |
| 13 | 1 |  | Unexplainable | Vox | |
| 14 | 8 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 15 | 4 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 16 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 17 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 18 | 3 |  | Short Wave | NPR | |
| 19 | 4 |  | Speaking of Psychology | American Psychological Association | |
| 20 | 5 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 21 | 1 |  | Public Health is Dead | Public Health is Dead | |
| 22 | 6 |  | The Psychology Podcast | iHeartPodcasts | |
| 23 | 6 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 24 | 25 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 25 | 3 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 26 | 16 |  | The Science of Birds | Ivan Phillipsen | |
| 27 | 3 |  | Overheard at National Geographic | National Geographic | |
| 28 | 2 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 29 | 9 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 30 | 32 | D | Defender Radio and The Switch | Michael Howie / The Fur-Bearers | |
| 31 | 15 |  | The Warblers by Birds Canada | Birds Canada | |
| 32 | 43 |  | Invisibilia | NPR | |
| 33 | 7 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 34 | 1 |  | Science Friday | Science Friday and WNYC Studios | |
| 35 | 15 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 36 | 5 |  | Universe Today Podcast | Fraser Cain | |
| 37 | 141 |  | Skeptoid | Brian Dunning | |
| 38 | 5 |  | Science Weekly | The Guardian | |
| 39 | 21 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 40 | 5 | O | On a fait nos recherches | Fred Savard | |
| 41 | 11 |  | Blurry Creatures | Blurry Creatures | |
| 42 | 17 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 43 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 44 | 7 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 45 | 8 |  | Discovery | BBC World Service | |
| 46 | 11 |  | Let's Learn Everything! | Maximum Fun | |
| 47 | 11 |  | Drilled | Pushkin Industries | |
| 48 | 10 |  | Cited Podcast | Cited Media | |
| 49 | 22 | D | Dose de psy: le podcast | Dre Janick Coutu, psychologue | |
| 50 | 2 |  | The Michael Shermer Show | Michael Shermer | |
| 51 | 8 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 52 | 14 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 53 | 10 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 54 | 20 |  | The Climate Question | BBC World Service | |
| 55 | 12 |  | Curiosity Weekly | Discovery | |
| 56 | 133 | L | Le Détecteur de rumeurs | Le Détecteur de rumeurs de Science-Presse | |
| 57 | 16 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 58 | 56 |  | Sasquatch Odyssey | Sasquatch Odyssey-Bigfoot Encounters | |
| 59 | 23 | S | Small Things Big Climate | Toronto Star | |
| 60 | 75 |  | Tiny Matters | Multitude | |
| 61 | 17 |  | Curious Cases | BBC Radio 4 | |
| 62 | 33 |  | More or Less | BBC Radio 4 | |
| 63 | 31 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 64 | 12 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 65 | 12 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 66 | 25 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 67 | 56 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 68 | 29 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 69 | 13 |  | Mysterious Universe | 8th Kind | |
| 70 | 13 |  | Eons: Surviving Deep Time | PBS | |
| 71 | 83 |  | Believing the Bizarre: Paranormal Podcast | Tyler and Charlie | |
| 72 | 11 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 73 | 88 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 74 | 5 |  | Science In Action | BBC World Service | |
| 75 | — |  | Skeptics with a K | Skeptic Media Limited | |
| 76 | 24 |  | Unbiased Science | @unbiasedscipod | |
| 77 | 12 |  | All In The Mind | ABC | |
| 78 | 8 |  | Most Terrifying Places in America | Travel Channel | |
| 79 | 31 |  | TED Talks Science and Medicine | TED | |
| 80 | 78 | T | TRAIT PHARMACIEN | A.P.E.S. | |
| 81 | 2 |  | SciShow Tangents | Complexly | |
| 82 | 114 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 83 | 6 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 84 | 29 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 85 | 83 |  | Outside/In | NHPR | |
| 86 | 31 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 87 | — |  | Expanded Perspectives | Expanded Perspectives | |
| 88 | 4 |  | Nature Podcast | Springer Nature Limited | |
| 89 | 33 | ![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 | |
| 90 | 17 |  | La Conversation scientifique | France Culture | |
| 91 | 13 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 92 | 50 | T | The Germs and Jargon Podcast | Dr. Mark Miller and Jonathan Hope | |
| 93 | 12 |  | La Science, CQFD | France Culture | |
| 94 | 5 |  | Science Magazine Podcast | Science Magazine | |
| 95 | 7 | S | Science Radio | Studio SF | |
| 96 | 11 |  | That UFO Podcast | That UFO Podcast | |
| 97 | 50 |  | The Market Gardener Podcast | JM Fortier | |
| 98 | 8 |  | Need To Know | Bryce Zabel | |
| 99 | 46 | D | DÉFIS – « Dialogues sur l'Enfance, la Famille et l'Intervention Sociale » | Centre de recherche CRUJeF | |
| 100 | 25 |  | Nice Genes! | Genome BC | |
