| 1 | 17 |  | Unexplainable | Vox | |
| 1 | 3 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 1 | — | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 2 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 3 | — |  | On Humans | Ilari Mäkelä | |
| 4 | 2 |  | Let's Learn Everything! | Maximum Fun | |
| 5 | 2 |  | Radiolab | WNYC Studios | |
| 6 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 2 |  | Matvælið | Matís | |
| 7 | 1 |  | Science Vs | Spotify Studios | |
| 8 | 12 |  | Countercurrent: conversations with Professor Roger Kneebone | Professor Roger Kneebone | |
| 10 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 11 | 3 | B | Boring History for Sleep | Velvet | |
| 11 | — | N | Nauka To Lubię | Tomasz Rożek | |
| 11 | 2 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 12 | 2 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 12 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 13 | 3 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 14 | 5 |  | More or Less | BBC Radio 4 | |
| 14 | 2 |  | Science Weekly | The Guardian | |
| 15 | — |  | The Michael Shermer Show | Michael Shermer | |
| 16 | 5 |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 17 | 5 |  | This Way Up | Arctic Council & Både Og | |
| 17 | 1 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 17 | 30 |  | Speaking of Psychology | American Psychological Association | |
| 18 | — |  | Drilled | Pushkin Industries | |
| 19 | 3 |  | Curious Cases | BBC Radio 4 | |
| 20 | 11 |  | Science Friday | Science Friday and WNYC Studios | |
| 20 | 13 |  | Short Wave | NPR | |
| 23 | 3 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 24 | 7 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 25 | 51 |  | Nature Podcast | Springer Nature Limited | |
| 25 | 8 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 26 | 119 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 26 | 70 |  | Dr Karl Podcast | triplej | |
| 26 | 8 |  | Kapphlaupið til tunglsins | Sævar Helgi Bragason | |
| 27 | 8 | T | The European Skeptics Podcast - The ESP | TheESP.eu | |
| 27 | 149 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
| 28 | 1 |  | Unexpected Elements | BBC World Service | |
| 29 | 16 |  | Paradigmepodden | Terje Toftenes | |
| 30 | — | A | Aurora Podcast | Aurora Podcast | |
| 31 | 9 |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 31 | 109 |  | Skeptics with a K | Skeptic Media Limited | |
| 33 | 9 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 34 | 84 |  | Universe Today Podcast | Fraser Cain | |
| 34 | 19 |  | This Week in Virology | Vincent Racaniello | |
| 35 | 140 |  | The Life Scientific | BBC Radio 4 | |
| 35 | 8 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 36 | 8 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 37 | 3 |  | Astrum Space | Astrum | |
| 37 | — |  | The Big Disaster: The Big Burn | LAist Studios | |
| 37 | 8 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 38 | 6 |  | Podcast UFO | Martin Willis | |
| 38 | 29 |  | Dumma Människor | Acast - Lina Thomsgård och Björn Hedensjö | |
| 39 | 14 |  | Quirks and Quarks | CBC | |
| 40 | 3 |  | SciShow Tangents | Complexly | |
| 41 | 8 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 42 | 136 |  | Physics World Weekly Podcast | Physics World | |
| 44 | — | H | Hvordan ved vi det? | Videnskabernes Selskab | |
| 44 | 12 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 46 | 23 |  | Discovery | BBC World Service | |
| 46 | — | L | La Suite dans les idées | France Culture | |
| 47 | 9 |  | Nerdland Podcast | Lieven Scheire | |
| 49 | 10 | H | Human Factors Minute | Human Factors Cast | |
| 50 | 88 |  | Science In Action | BBC World Service | |
| 52 | 3 |  | The Climate Question | BBC World Service | |
| 53 | — | F | Farming Today | BBC Radio 4 | |
| 54 | 29 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 55 | 25 |  | Bigfoot Society | Jeremiah Byron | |
| 56 | 3 |  | BBC Inside Science | BBC Radio 4 | |
| 57 | 13 | P | Purr Podcast | Jolle Kirpensteijn & Susan Little | |
| 58 | 26 | W | Wild Tales | Nature Podcast | National Trust | |
| 59 | 7 | S | Sweet Little Human | Orkan Media | |
| 59 | 26 |  | Need To Know | Bryce Zabel | |
| 60 | — | T | The Death Studies Podcast | The Death Studies Podcast | |
| 61 | 24 |  | Lost Women of Science | Lost Women of Science | |
| 62 | 26 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 62 | — |  | Vetenskapsradion | Sveriges Radio | |
| 63 | 9 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 64 | 25 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 65 | 25 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 66 | 24 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 67 | 24 |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 67 | — | I | Intertek's Assurance in Action Podcast Network | Intertek | |
| 68 | 23 |  | The Plodcast | Our Media | |
| 68 | 2 |  | Farm Small Farm Smart | The Modern Grower Podcast Network | |
| 68 | — |  | Manifold | Steve Hsu | |
| 69 | 22 |  | The Couples Therapist Couch | Shane Birkel | |
| 70 | 14 |  | The Micah Hanks Program | Micah Hanks | |
| 70 | — | S | Spooky Psychology | Lauren Mollica and Megan Baker | |
| 71 | 11 | T | Trees A Crowd | David Oakes | |
| 71 | 31 | N | New Books in Anthropology | New Books Network | |
| 72 | 24 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 73 | 23 |  | UFO Chronicles Podcast | Nik Hunter | |
| 74 | 23 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 75 | 20 |  | Science Friction | ABC | |
| 76 | 20 |  | Ask a Spaceman! | Paul M. Sutter | |
| 78 | 18 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 79 | 16 |  | Babbage from The Economist | The Economist | |
| 80 | 16 |  | The Supermassive Podcast | The Royal Astronomical Society | |
