| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | Unexplainable | Vox | |
| 6 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 7 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 8 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | — |  | Radiolab | WNYC Studios | |
| 10 | — |  | The Psychology Podcast | iHeartPodcasts | |
| 11 | 13 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 12 | 1 |  | CrowdScience | BBC World Service | |
| 13 | 58 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 14 | 3 | T | The Brain and Brand Show | Podcast Party | |
| 15 | 61 |  | Living Planet | DW | |
| 16 | 2 |  | Discovery | BBC World Service | |
| 17 | — |  | Radiowissen | Bayerischer Rundfunk | |
| 18 | 2 |  | Nature Podcast | Springer Nature Limited | |
| 19 | 25 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 20 | 94 |  | Science In Action | BBC World Service | |
| 21 | 6 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 22 | 98 |  | Overheard at National Geographic | National Geographic | |
| 23 | 81 |  | Regenerative Agriculture Podcast | John Kempf | |
| 24 | 7 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 25 | 47 |  | Curious Cases | BBC Radio 4 | |
| 26 | 10 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 27 | 6 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 28 | 5 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 29 | 2 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 30 | 11 |  | Science Weekly | The Guardian | |
| 31 | 13 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 32 | 141 |  | Why Do We Do That? | BBC Radio 4 | |
| 33 | 21 |  | The Orthobullets Podcast | Orthobullets | |
| 34 | 94 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 35 | 14 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 36 | 7 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 37 | 11 |  | Ancient Aliens | PodcastOne | |
| 38 | 16 |  | Speaking of Psychology | American Psychological Association | |
| 39 | 132 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 40 | 12 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 41 | 5 |  | More or Less | BBC Radio 4 | |
| 42 | 12 |  | Blurry Creatures | Blurry Creatures | |
| 43 | 5 |  | Unexpected Elements | BBC World Service | |
| 44 | — |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 45 | — |  | Know What You See with Brian Lowery | Brian S. Lowery | |
| 46 | 34 |  | All In The Mind | ABC | |
| 47 | 84 |  | Science Quickly | Scientific American | |
| 48 | — |  | Speed & Scale | TED | |
| 49 | — |  | Science Will Win | Pfizer | |
| 50 | 16 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 51 | — | K | K9 Conservationists | Kayla Fratt | |
| 52 | — | M | Master Brewers Podcast | Master Brewers Association of the Americas (MBAA) | |
| 53 | 16 |  | That UFO Podcast | That UFO Podcast | |
| 54 | 29 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 55 | 10 |  | BBC Inside Science | BBC Radio 4 | |
| 56 | — |  | Tiny Matters | Multitude | |
| 57 | — |  | Cool Worlds Podcast | coolworldslab | |
| 58 | — |  | The Composter Podcast | Jayne Merner | |
| 59 | — | R | Rewildology | Brooke Mitchell | |
| 60 | — | K | Knowable | Knowable Magazine | |
| 61 | 30 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 62 | 7 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 63 | 14 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 64 | 29 |  | ExtinctZoo | ExtinctZoo | |
| 65 | 100 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 66 | 10 | ![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 | |
| 67 | 22 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 68 | 22 |  | La Science, CQFD | France Culture | |
| 69 | 6 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 70 | 38 |  | Science Friday | Science Friday and WNYC Studios | |
| 71 | 31 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 72 | 24 |  | Let's Learn Everything! | Maximum Fun | |
| 73 | 6 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 74 | 33 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 75 | 37 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 76 | 39 |  | Skeptics with a K | Skeptic Media Limited | |
| 77 | 20 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 78 | 35 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 79 | 5 |  | Science Vs | Spotify Studios | |
| 80 | 77 |  | TheThinkingAtheist | The Thinking Atheist | |
| 81 | 30 |  | SciShow Tangents | Complexly | |
| 82 | 43 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 83 | 47 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 84 | 42 |  | The Warblers by Birds Canada | Birds Canada | |
| 85 | 33 | T | The Artificial Human | BBC Radio 4 | |
| 86 | 16 |  | Need To Know | Bryce Zabel | |
| 87 | 27 |  | A Life More Wild | Canopy & Stars | |
| 88 | 41 |  | Ask Us Anything by Popular Science | Popular Science | |
| 89 | 40 |  | Death by Birding | Dr Cesar Puechmarin | |
| 90 | 40 | C | Conservation and Science | Tommy's Outdoors | |
| 91 | 13 |  | Curiosity Weekly | Discovery | |
| 92 | 39 |  | TED Talks Science and Medicine | TED | |
| 93 | 38 | T | The Power Shift: Decolonising Development | Kate Bird | |
| 94 | 36 | B | Between the Lines | Institute of Development Studies | |
| 95 | 36 |  | Clinical Chemistry Podcast | Association for Diagnostics and Laboratory Medicine | |
| 96 | 35 | F | FOCUS on Agriculture | Preston & Jason | |
| 97 | 35 |  | Akon City, l'afro-futurisme devient réalité (rediffusion) | Else Legroz | |
| 98 | 35 | F | Farming With Nature | Mzansi Story Labs | |
| 99 | 35 | W | Wilderness Medicine Podcast | Wilderness Medical Society | |
| 100 | 35 | S | Sage Nutrition & Dietetics | SAGE Publications Ltd. | |
