| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 5 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | 11 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 5 | 2 |  | Radiolab | WNYC Studios | |
| 6 | 8 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 4 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 2 |  | Science Weekly | The Guardian | |
| 10 | 4 |  | Unexplainable | Vox | |
| 11 | 2 | G | Green Noise | CapeNature | |
| 12 | — |  | Blurry Creatures | Blurry Creatures | |
| 13 | 6 | B | Boring History for Sleep | Velvet | |
| 14 | 14 |  | Science Vs | Spotify Studios | |
| 15 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 6 |  | Speaking of Psychology | American Psychological Association | |
| 17 | — |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 18 | 7 |  | The Psychology Podcast | iHeartPodcasts | |
| 19 | 37 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 20 | 4 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 21 | 127 |  | Lost Women of Science | Lost Women of Science | |
| 22 | 94 | S | St Marks Hospital Podcast | Jordan Fletcher | |
| 23 | 159 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 24 | — |  | The Common Descent Podcast | Common Descent | |
| 25 | 36 |  | Science Friday | Science Friday and WNYC Studios | |
| 26 | 80 |  | Ancient Aliens | PodcastOne | |
| 27 | 3 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 28 | 90 |  | Origin Stories | The Leakey Foundation | |
| 29 | 125 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 30 | — | F | Farming Today | BBC Radio 4 | |
| 31 | — | T | Talking Euretina | Whipsmart Media | |
| 32 | 10 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 33 | 68 |  | The Quanta Podcast | Quanta Magazine | |
| 34 | 3 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 35 | 17 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 36 | 16 |  | Mythfits | Pionaire Podcasting | |
| 37 | 16 |  | Discovery | BBC World Service | |
| 38 | 71 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 39 | 14 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 40 | 7 |  | The Michael Shermer Show | Michael Shermer | |
| 41 | 53 |  | New Books in Critical Theory | Marshall Poe | |
| 42 | 19 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 43 | — |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 44 | — |  | The Futurists | Brett King, JP Nicols, Jason Henrichs | |
| 45 | 21 |  | The Science of Everything Podcast | James Fodor | |
| 46 | 24 |  | Curious Cases | BBC Radio 4 | |
| 47 | 152 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 48 | 5 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 49 | — | W | World of Sharks | Save Our Seas Foundation | |
| 50 | — |  | The Swiss Connection | SWI swissinfo.ch | |
| 51 | 25 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 52 | 14 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 53 | 75 |  | Regenerative Agriculture Podcast | John Kempf | |
| 54 | — | S | Stable Science from Dr David Marlin's Animalweb | Dr David Marlin | |
| 55 | 26 |  | More or Less | BBC Radio 4 | |
| 56 | 22 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 57 | 45 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 58 | 21 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 59 | 56 |  | BBC Inside Science | BBC Radio 4 | |
| 60 | 8 |  | Unexpected Elements | BBC World Service | |
| 61 | 35 | T | The Naked Scientists Podcast | The Naked Scientists | |
| 62 | 15 |  | Short Wave | NPR | |
| 63 | 3 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 64 | 7 | A | AfroPop Music 4 D Soul | BlackBoiAmazing | |
| 65 | 30 | S | Students of Surgery | Martin Brand | |
| 66 | 38 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 67 | 85 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 68 | 3 |  | Intelligent Design the Future | Discovery Institute | |
| 69 | 28 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 70 | 43 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 71 | 6 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 72 | 28 |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 73 | 20 |  | Astrum Space | Astrum | |
| 74 | 38 |  | That's Just Wild | Fresh Air | |
| 75 | 72 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 76 | 24 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 77 | 23 |  | That UFO Podcast | That UFO Podcast | |
| 78 | 46 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 79 | 9 |  | Robinson's Podcast | Robinson Erhardt | |
| 80 | 41 |  | Evolutionary Psychology (the podcast) | Dave Pietraszewski & David Pinsof | |
| 81 | 44 |  | Nature Podcast | Springer Nature Limited | |
| 82 | 37 | T | The Soil Health Hub Podcast | Soil Health Hub | |
| 83 | 37 |  | UAP Files Podcast | UAP Files Podcast | |
| 84 | 37 | T | The Animal Sensemaker | The Observer | |
| 85 | 36 |  | Deep Insights with Mining Review Africa | Mining Review Africa | |
| 86 | 3 | D | Die großen Fragen der Wissenschaft | detektor.fm – Das Podcast-Radio | |
| 87 | 24 |  | This Week in Cardiology | Medscape | |
| 88 | 31 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 89 | 31 |  | The Orthobullets Podcast | Orthobullets | |
| 90 | — | I | Into The Paranormal, Podcast With Tony Brueski | Real Story Media | |
| 91 | — | T | TALONS OF HOPE | Munir Virani and Kiran Ghadge | |
| 92 | 11 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 93 | 50 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 94 | 34 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 95 | 63 |  | What The If? | Philip Shane, Matt Stanley, Gabrielle Paniccia | |
| 96 | — |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 97 | 43 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 98 | 90 |  | The Science of Birds | Ivan Phillipsen | |
| 99 | 51 |  | 6 Ranch Podcast | James Nash | |
| 100 | 50 |  | Universe Today Podcast | Fraser Cain | |
