| 1 | 1 |  | Curious Cases | BBC Radio 4 | |
| 2 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 12 |  | Science Vs | Spotify Studios | |
| 6 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | 4 |  | All In The Mind | ABC | |
| 8 | 2 |  | Radiolab | WNYC Studios | |
| 9 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 2 |  | More or Less | BBC Radio 4 | |
| 11 | 2 |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 12 | 1 | B | Blazing the Trail | University of Sydney / Australian Museum / Break Thru Films | |
| 13 | 3 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 14 | 31 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 15 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 16 | 1 |  | Science In Action | BBC World Service | |
| 17 | 133 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 18 | 14 |  | Making Sense with Sam Harris | Sam Harris | |
| 19 | 6 | O | Our Changing World | RNZ | |
| 20 | 6 |  | This Week in Space (Audio) | TWiT | |
| 21 | 7 | T | Tune into Nature with Karthic | Tune into Nature | |
| 22 | 9 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 23 | 28 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 24 | 9 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 25 | 149 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 26 | — | V | Voice of Tangaroa | RNZ | |
| 27 | 8 |  | Unexplainable | Vox | |
| 28 | 20 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 29 | 11 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 30 | 9 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 31 | 60 |  | Overheard at National Geographic | National Geographic | |
| 32 | 10 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 33 | 9 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 34 | 68 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 35 | 76 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 36 | 60 | W | Why? with Emma Kennedy | Podmasters | |
| 37 | 17 |  | Science Weekly | The Guardian | |
| 38 | 4 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 39 | 78 |  | Farm Small Farm Smart | The Modern Grower Podcast Network | |
| 40 | 13 |  | Speaking of Psychology | American Psychological Association | |
| 41 | 13 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 42 | 86 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 43 | 73 |  | The Science Show | ABC | |
| 44 | 57 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 45 | 17 |  | Discovery | BBC World Service | |
| 46 | 101 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 47 | 107 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 48 | 19 | M | MissPerceived | Audiocrafty | |
| 49 | 113 | M | Mind Brew | Jacqui Maguire | |
| 50 | 19 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 51 | 21 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 52 | — |  | The Mushroom Hour Podcast | Mushroom Hour | |
| 53 | — | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 54 | — | W | Walkabout the Galaxy | Joshua Colwell, Adrienne Dove, and James Cooney | |
| 55 | 17 |  | That UFO Podcast | That UFO Podcast | |
| 56 | — |  | La Conversation scientifique | France Culture | |
| 57 | — | T | The Great Cholesterol Deception--The Story Behind | chiki&bella | |
| 58 | — |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 59 | — |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 60 | — | P | Palaeocast | Palaeocast | |
| 61 | — | P | Psykologipodden | Jacqueline Levi | |
| 62 | 39 |  | CrowdScience | BBC World Service | |
| 63 | — |  | My Bigfoot Sighting | Vic Cundiff | |
| 64 | — | E | Ecology Matters | Ecological Society of Australia | |
| 65 | — | E | Ecology Academy Podcast | ecologyacademy | |
| 66 | — | F | Fight for the Wild | RNZ | |
| 67 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 68 | — | E | Everything Epigenetics | Hannah Went | |
| 69 | — | B | Blood Bank Guy Videos | Joe Chaffin, MD | |
| 70 | — | B | Blood Bank Guy Podlet Series | Joe Chaffin, MD | |
| 71 | — |  | 碳笑风生 | Shangwei, MInghao | |
| 72 | — | E | Emergency Medicine News - The Physician Grind @ EMN with Zahir Basrai, MD | Unknown | |
| 73 | 36 |  | SciShow Tangents | Complexly | |
| 74 | 39 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 75 | 36 |  | The Life Scientific | BBC Radio 4 | |
| 76 | 36 |  | Most Terrifying Places in America | Travel Channel | |
| 77 | 41 |  | The 365 Days of Astronomy | 365DaysOfAstronomy.org | |
| 78 | 24 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 79 | 38 |  | Battery Generation | Patrick von Rosen, Lennart Peters | |
| 80 | 33 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 81 | 39 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 82 | 39 | R | Rewilding In Action | Maureen Howard | |
| 83 | 37 |  | Brave New World | Evening Standard | |
| 84 | 21 |  | Reskillience | Catie Payne | |
| 85 | 41 |  | This Week in Virology | Vincent Racaniello | |
| 86 | 28 |  | Safety Third | Safety Third | |
| 87 | 37 | B | blurbs | Matt Ross | |
| 88 | 23 |  | Physics to God | Aaron Zimmer and Elie Feder | |
| 89 | 33 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 90 | 38 |  | Breaking Math Podcast | Autumn Phaneuf & Noah Giansiracusa | |
| 91 | 5 | S | SCRS Talks | Society for Clinical Research Sites | |
| 92 | 43 |  | Bigfoot Society | Jeremiah Byron | |
| 93 | 36 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 94 | 33 |  | Two Bees in a Podcast | UF/IFAS Honey Bee Lab | |
| 95 | 35 | T | The Animal Sensemaker | The Observer | |
| 96 | 41 |  | Osher WISE: Well-being and Integrative Science for Everyone (Audio) | UCTV | |
| 97 | 33 | E | Extinction Event | Melissa Thomas, Jack Collier | |
| 98 | 23 |  | Dr Giles Yeo Chews the Fat | Orion Publishing Ltd. | |
| 99 | 29 |  | Paranormal Portal | Brent Thomas | |
| 100 | 34 |  | Aporia Podcast | Aporia Magazine | |
