| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Unexplainable | Vox | |
| 3 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 2 |  | Radiolab | WNYC Studios | |
| 5 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 6 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 8 | 2 |  | Science Vs | Spotify Studios | |
| 9 | — |  | Science Weekly | The Guardian | |
| 10 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 11 | — |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 12 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 13 | 31 |  | The Future of Everything | Stanford Engineering | |
| 14 | 5 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 15 | 6 |  | The Psychology Podcast | iHeartPodcasts | |
| 16 | — | T | The Brain and Brand Show | Podcast Party | |
| 17 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 18 | 30 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 19 | 7 |  | The Science of Everything Podcast | James Fodor | |
| 20 | 53 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 21 | 11 |  | Living Planet | DW | |
| 22 | 6 |  | Discovery | BBC World Service | |
| 23 | 4 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 24 | 11 |  | Curious Cases | BBC Radio 4 | |
| 25 | 11 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 26 | 10 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 27 | 9 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 28 | 11 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 29 | 94 |  | The Orthobullets Podcast | Orthobullets | |
| 30 | 69 |  | Let's Learn Everything! | Maximum Fun | |
| 31 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 32 | 75 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 33 | 28 |  | Science Friday | Science Friday and WNYC Studios | |
| 34 | 14 |  | Agriscience Explained | Corteva Agriscience | |
| 35 | — |  | The Climate Question | BBC World Service | |
| 36 | 141 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 37 | — |  | Spacewalk with Everyday Astronaut | Tim Dodd | |
| 38 | — |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 39 | 17 |  | Speed & Scale | TED | |
| 40 | — |  | The Data Science Education Podcast | Berkeley Data Science | |
| 41 | — | A | Aspiring Martians | Aspiring Martians | |
| 42 | — | T | The Intern At Work: Internal Medicine | Medicine Pods: The Intern at Work | |
| 43 | — |  | The Biochar Talk | Jessica Kouvo | |
| 44 | — |  | Naturebang | BBC Radio 4 | |
| 45 | — |  | The Biochar Podcast | ANZBIG | |
| 46 | — | B | Bangor Sport Science | Kevin Williams | |
| 47 | — | H | Human Sciences Research Council (HSRC) seminars | Human Sciences Research Council | |
| 48 | 24 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 49 | 18 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 50 | 25 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 51 | 17 |  | Blurry Creatures | Blurry Creatures | |
| 52 | 26 |  | Universe Today Podcast | Fraser Cain | |
| 53 | 18 |  | Short Wave | NPR | |
| 54 | 25 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 55 | 25 | S | Students of Surgery | Martin Brand | |
| 56 | 20 |  | BBC Inside Science | BBC Radio 4 | |
| 57 | 5 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 58 | 25 |  | Intelligent Design the Future | Discovery Institute | |
| 59 | 74 |  | Ask a Spaceman! | Paul M. Sutter | |
| 60 | 13 |  | Most Terrifying Places in America | Travel Channel | |
| 61 | 18 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 62 | 7 | ![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 | |
| 63 | 26 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 64 | 9 | 1 | 1202 - The Human Factors Podcast | Barry Kirby C.ErgHF FCIEHF | |
| 65 | 26 | E | Easy Physics | Easy Physics | |
| 66 | 28 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 67 | 8 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 68 | 31 |  | Tiny Matters | Multitude | |
| 69 | 7 |  | Mind & Life | Mind & Life Institute | |
| 70 | 29 |  | Earthfiles Podcast with Linda Moulton Howe | Linda Moulton Howe | |
| 71 | 11 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 72 | 38 |  | More or Less | BBC Radio 4 | |
| 73 | 33 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 74 | 32 |  | iNTO THE FRAY RADIO - Encounters with the Paranormal | Shannon LeGro | |
| 75 | 13 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 76 | 31 |  | Head Shepherd | Mark Ferguson | |
| 77 | 31 |  | Instant Genius | Our Media | |
| 78 | 29 |  | Completely Arbortrary | Completely Arbortrary | |
| 79 | 29 |  | Physics World Weekly Podcast | Physics World | |
| 80 | 29 |  | Great Mysteries of Physics | The Conversation | |
| 81 | 29 |  | The Episodic Table of Elements | T. R. Appleton | |
| 82 | 29 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 83 | 29 |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 84 | 28 | T | The Journal Club | Beimnet Kassaye | |
| 85 | 28 | P | Podcast – AEE Center | Podcast – AEE Center | |
| 86 | 28 | J | JHLT: The Podcast | ISHLT | |
| 87 | 23 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 88 | 40 | L | Let's Talk Micro | Luis Plaza | |
| 89 | 11 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 90 | 8 |  | iLukuluku | All Ears FM | |
| 91 | 23 |  | That UFO Podcast | That UFO Podcast | |
| 92 | 29 |  | Nature Insight: Speed Dating with the Future | IPBES | |
| 93 | 21 |  | Overheard at National Geographic | National Geographic | |
| 94 | 41 |  | The Michael Shermer Show | Michael Shermer | |
| 95 | 28 |  | Skeptics with a K | Skeptic Media Limited | |
| 96 | 2 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 97 | 26 | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 98 | 33 |  | This Week in Cardiology | Medscape | |
| 99 | 2 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 100 | 23 | G | Green Noise | CapeNature | |
