| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | — |  | Curious Cases | BBC Radio 4 | |
| 4 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | — |  | The Psychology Podcast | iHeartPodcasts | |
| 6 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | — |  | Ologies with Alie Ward | Alie Ward | |
| 8 | — |  | Science Vs | Spotify Studios | |
| 9 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 10 | — | S | Students of Surgery | Martin Brand | |
| 11 | — |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 12 | — |  | Radiolab | WNYC Studios | |
| 13 | — |  | Discovery | BBC World Service | |
| 14 | — |  | Google DeepMind: The Podcast | Hannah Fry | |
| 15 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 16 | — |  | Science Weekly | The Guardian | |
| 17 | — |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 18 | — |  | Short Wave | NPR | |
| 19 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 20 | — |  | More or Less | BBC Radio 4 | |
| 21 | — |  | That UFO Podcast | That UFO Podcast | |
| 22 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 23 | — |  | Unexplainable | Vox | |
| 24 | — |  | BBC Inside Science | BBC Radio 4 | |
| 25 | — |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 26 | — |  | The Wild with Chris Morgan | KUOW News and Information | |
| 27 | — |  | Deep Insights with Mining Review Africa | Mining Review Africa | |
| 28 | — |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 29 | — | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 30 | — |  | ScienceStuff | iHeartPodcasts | |
| 31 | — | T | This Wild Life Conservation Podcast | Amy Turner | |
| 32 | — |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 33 | — |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 34 | — |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 35 | — | T | The Science of Self | Peter Hollins | |
| 36 | — |  | The Science of Everything Podcast | James Fodor | |
| 37 | — |  | The Nature Of with Willow Defebaugh | Atmos | |
| 38 | — |  | Speaking of Psychology | American Psychological Association | |
| 39 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 40 | — |  | Origin Stories | The Leakey Foundation | |
| 41 | — | I | Illumina Genomics Podcast | Illumina, Inc. | |
| 42 | — |  | MinuteEarth | Minute Earth | |
| 43 | — |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 44 | — | T | The Brain and Brand Show | Podcast Party | |
| 45 | — |  | Publish, Perish or Podcast | Publish, Perish or Podcast | |
| 46 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 47 | — |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 48 | — |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 49 | — |  | Astrum Space | Astrum | |
| 50 | — |  | Blurry Creatures | Blurry Creatures | |
| 51 | — |  | Choiceology with Katy Milkman | Charles Schwab | |
| 52 | — |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 53 | — |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 54 | — |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 55 | — |  | Nature Podcast | Springer Nature Limited | |
| 56 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 57 | — |  | Science Friday | Science Friday and WNYC Studios | |
| 58 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 59 | — |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 60 | — |  | Living Planet | DW | |
| 61 | — |  | Sustainababble | Sustainababble: comedy, nature, climate change. | |
| 62 | — |  | Soil Matters | The British Society of Soil Science | |
| 63 | — | J | Journal of the American Academy of Child and Adolescent Psychiatry | American Academy of Child and Adolescent Psychiatry | |
| 64 | — | P | Plane Crash Diaries | Desmond Latham | |
| 65 | — |  | How We're Wired | The Bertarelli Foundation | |
| 66 | — | V | Veterinary Vertex | AVMA Journals | |
| 67 | — |  | Beat Your Genes Podcast | BeatYourGenes | |
| 68 | — | B | BJJ Podcasts | The Bone & Joint Journal | |
| 69 | — | O | Ocean Matters | The Bertarelli Foundation | |
| 70 | — | C | Chemical Collective | Dustin Hines | |
| 71 | — | G | Growing Texas Olives | Stephen Janak | |
| 72 | — | L | Little Do We Know... (The Devil We Know review) | Giana Dolan | |
| 73 | — | A | AVEAM — Kent Hovind Official YouTube Podcast | Unknown | |
| 74 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 75 | — |  | Science In Action | BBC World Service | |
| 76 | — |  | Rare Earth | BBC Radio 4 | |
| 77 | — |  | The Couples Therapist Couch | Shane Birkel | |
| 78 | — |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 79 | — |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 80 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 81 | — |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 82 | — |  | Robinson's Podcast | Robinson Erhardt | |
| 83 | — |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 84 | — |  | CrowdScience | BBC World Service | |
| 85 | — |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 86 | — |  | TheThinkingAtheist | The Thinking Atheist | |
| 87 | — |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 88 | — |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 89 | — |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 90 | — |  | This Week in Virology | Vincent Racaniello | |
| 91 | — | T | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 92 | — |  | The Behavioral Observations Podcast with Matt Cicoria | Matt Cicoria | |
| 93 | — |  | In Defense of Plants Podcast | In Defense of Plants | |
| 94 | — |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 95 | — | D | Data Science Decoded | Mike E | |
| 96 | — |  | Flash Forward | Rose Eveleth | |
| 97 | — | P | Philosophy | Cambridge University | |
| 98 | — | B | Biostatistics Podcast | Jocelyn Chen | |
| 99 | — |  | Spacewalk with Everyday Astronaut | Tim Dodd | |
| 100 | — |  | Deep Dive: MH370, Remastered | Jeff Wise | |
