| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | — |  | Radiolab | WNYC Studios | |
| 3 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 1 |  | More or Less | BBC Radio 4 | |
| 5 | 18 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 6 | 7 |  | All In The Mind | ABC | |
| 7 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 8 | 4 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 9 | 2 |  | BBC Inside Science | BBC Radio 4 | |
| 10 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 11 | 8 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 12 | 4 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 13 | 9 |  | Science Weekly | The Guardian | |
| 14 | 2 |  | Alive Again | iHeartPodcasts | |
| 15 | 5 |  | CrowdScience | BBC World Service | |
| 16 | 5 |  | Making Sense with Sam Harris | Sam Harris | |
| 17 | 14 |  | The Life Scientific | BBC Radio 4 | |
| 18 | 3 |  | Science In Action | BBC World Service | |
| 19 | 5 | O | Our Changing World | RNZ | |
| 20 | 8 |  | Science Vs | Spotify Studios | |
| 21 | 5 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 22 | 8 |  | Unexpected Elements | BBC World Service | |
| 23 | 6 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 24 | 1 | B | Boring History for Sleep | Velvet | |
| 25 | 13 |  | The Psychology Podcast | iHeartPodcasts | |
| 26 | 8 |  | The world, the universe and us | New Scientist | |
| 27 | 15 |  | Every Animal Ever | Dr Cesar Puechmarin, Zach Mander | |
| 28 | 8 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 29 | 169 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 30 | 9 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 31 | 45 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 32 | — |  | The TBRI Podcast | Karyn Purvis Institute of Child Development TCU | |
| 33 | 29 | P | Psychology | Yale School of Medicine | |
| 34 | 44 |  | Speaking of Psychology | American Psychological Association | |
| 35 | 18 | C | Costing the Earth | BBC Radio 4 | |
| 36 | 49 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 37 | 163 |  | Let's Learn Everything! | Maximum Fun | |
| 38 | 42 | N | New Scientist Weekly | New Scientist | |
| 39 | 6 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 40 | 6 |  | Blurry Creatures | Blurry Creatures | |
| 41 | 12 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 42 | 16 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 43 | 66 |  | Mythfits | Pionaire Podcasting | |
| 44 | 82 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 45 | 26 |  | Astrum Space | Astrum | |
| 46 | 19 |  | Invisibilia | NPR | |
| 47 | 25 | O | Open Country | BBC Radio 4 | |
| 48 | 108 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 49 | 4 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 50 | 20 | T | The Show About Science | Nate | The Company Making Podcasts | |
| 51 | — |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 52 | 6 |  | Dr Karl Podcast | triplej | |
| 53 | 21 |  | The Michael Shermer Show | Michael Shermer | |
| 54 | — | N | Nocturnal Worlds | Audiocraft | |
| 55 | 4 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 56 | — |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 57 | 7 |  | Universe Today Podcast | Fraser Cain | |
| 58 | — | S | Sea Change: The Biodiversity Data Science Podcast | jorgemfa | |
| 59 | 18 | W | What The Duck?! | ABC | |
| 60 | — |  | Kindred | Kate Coffin | |
| 61 | 18 |  | Rare Earth | BBC Radio 4 | |
| 62 | — | T | The Social Work Stories Podcast | The Social Work Stories Team | |
| 63 | — | P | Performance Around The Clock | Dr. Satchin Panda | |
| 64 | — |  | Farming For Change | James Smith | |
| 65 | — | T | The Effort Report | Elizabeth Matsui and Roger Peng | |
| 66 | 25 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 67 | 13 |  | Origin Stories | The Leakey Foundation | |
| 68 | 31 |  | Living Planet | DW | |
| 69 | 28 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 70 | 11 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 71 | 31 | F | Fight for the Wild | RNZ | |
| 72 | 33 | T | Tune into Nature with Karthic | Tune into Nature | |
| 73 | 12 |  | The Science Show | ABC | |
| 74 | 19 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 75 | 31 |  | Short Wave | NPR | |
| 76 | 29 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 77 | 41 |  | Science Friday | Science Friday and WNYC Studios | |
| 78 | 46 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 79 | 95 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 80 | 45 |  | Unexplainable | Vox | |
| 81 | 25 |  | Scotland Outdoors | BBC Radio Scotland | |
| 82 | 39 | Q | Quantum Physics for Kids | Subatomic Tanvi | |
| 83 | 17 | V | Voice of the Iceberg | RNZ | |
| 84 | 35 | T | The Weather That Changed Us | ABC | |
| 85 | 33 |  | Science Quickly | Scientific American | |
| 86 | 38 |  | Discovery | BBC World Service | |
| 87 | 14 |  | Skeptoid | Brian Dunning | |
| 88 | 88 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 89 | 17 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 90 | 22 |  | Science Friction | ABC | |
| 91 | — | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 92 | 34 |  | The Parkinson's Podcast | Davis Phinney Foundation | |
| 93 | 36 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 94 | 19 |  | Skeptics with a K | Skeptic Media Limited | |
| 95 | 32 |  | The Acres U.S.A. Podcast | Acres U.S.A.® | |
| 96 | 32 |  | ASTRO Journals | Various | |
| 97 | 32 | S | SERious EPI | Sue Bevan - Society for Epidemiologic Research | |
| 98 | — | Б | Буде тобі наука | Kunsht/Куншт | |
| 99 | 32 | A | American Journal of Public Health Podcast | AJPH | |
| 100 | 17 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
