| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 4 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | Science Vs | Spotify Studios | |
| 4 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 3 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 6 | 4 |  | Unexplainable | Vox | |
| 7 | 3 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 8 | 1 |  | Curious Cases | BBC Radio 4 | |
| 9 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 10 | 7 |  | Radiolab | WNYC Studios | |
| 11 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 12 | 1 |  | Science Weekly | The Guardian | |
| 13 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 14 | — |  | That's Just Wild | Fresh Air | |
| 15 | 34 |  | Blurry Creatures | Blurry Creatures | |
| 16 | 5 |  | New Books in Psychoanalysis | Marshall Poe | |
| 17 | 4 | S | Students of Surgery | Martin Brand | |
| 18 | 1 |  | Robinson's Podcast | Robinson Erhardt | |
| 19 | 39 |  | The Michael Shermer Show | Michael Shermer | |
| 20 | 6 |  | The Quanta Podcast | Quanta Magazine | |
| 21 | 9 | T | The Royal College of Psychiatrists Podcast | RCPsych | |
| 22 | 29 |  | Short Wave | NPR | |
| 23 | 25 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 24 | 8 |  | Alive Again | iHeartPodcasts | |
| 25 | 37 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 26 | 42 |  | Living Planet | DW | |
| 27 | 9 |  | More or Less | BBC Radio 4 | |
| 28 | 92 |  | Universe Today Podcast | Fraser Cain | |
| 29 | 103 |  | Instant Genius | Our Media | |
| 30 | 112 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 31 | 97 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 32 | 94 |  | A Life More Wild | Canopy & Stars | |
| 33 | — |  | Choiceology with Katy Milkman | Charles Schwab | |
| 34 | — |  | The Orthobullets Podcast | Orthobullets | |
| 35 | 117 | T | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 36 | 130 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 37 | 159 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 38 | — |  | Science Quickly | Scientific American | |
| 39 | 121 |  | Most Terrifying Places in America | Travel Channel | |
| 40 | 132 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 41 | 113 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 42 | — |  | TED Talks Science and Medicine | TED | |
| 43 | — | C | Climate Change and Health Conversation with Nana Adwoa Achiaa | Climate & Health podcast | |
| 44 | 25 |  | Discovery | BBC World Service | |
| 45 | — | A | A Light On | A Light On | |
| 46 | — | P | Pharmacology Basics | Instructor Gwin | |
| 47 | — |  | The Eco Well podcast | Jen@theecowell | |
| 48 | — | I | IHME’s Global Health Insights | Institute for Health Metrics and Evaluation | |
| 49 | — | P | Playing Odd | josh@playingodd.com | |
| 50 | — | R | REvaluation Podcast | fteval | |
| 51 | — | P | Plan A Primary: Physics and Equipment | Plan A Primary | |
| 52 | — |  | Seedpod | Lee Rael | |
| 53 | 3 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 54 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 55 | 8 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 56 | 36 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 57 | 34 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 58 | 34 |  | Speed & Scale | TED | |
| 59 | 33 | B | BJA Education Podcasts | BJA Education | |
| 60 | 7 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 61 | 39 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 62 | 2 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 63 | 27 |  | Ground Truths | Eric Topol | |
| 64 | 16 |  | Regenerative Agriculture Podcast | John Kempf | |
| 65 | 38 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 66 | 31 |  | Found in Space: A Science Podcast for Kids and Teens | Arwen Hubbard | |
| 67 | 39 | E | Endocrine Feedback Loop | Endocrine Society | |
| 68 | 23 | G | Grand Solar Minimum News | grandsolarminimum | |
| 69 | 36 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 70 | 38 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 71 | 37 | T | TamingtheSRU | UC Department of Emergency Medicine | |
| 72 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 73 | 44 | Q | Qualitative Research Methods for Everyone Podcast | Policy Press | |
| 74 | 43 | T | The Alcohol 'Problem' Podcast | James Morris | |
| 75 | 38 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 76 | 38 | P | PsychCrunch | The British Psychological Society Research Digest | |
| 77 | 38 | T | The Abnormal Psychologist | Dr. Colby Taylor | |
| 78 | 38 |  | Settle the Stars: The Science of Space Exploration | Edgeworks Nebula | |
| 79 | 38 |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 80 | 38 | P | Plane Crash Diaries | Desmond Latham | |
| 81 | 38 | O | Outdoor Sounds | Jeff Large | |
| 82 | 38 | F | Foot Innovate Podcast Channel | Foot Innovate Leadership Team | |
| 83 | 37 | T | The BIG Think | mackenzie peterson | |
| 84 | 59 |  | Overheard at National Geographic | National Geographic | |
| 85 | 31 |  | Naturebang | BBC Radio 4 | |
| 86 | 26 |  | Bigfoot Society | Jeremiah Byron | |
| 87 | 35 |  | The Psychology Podcast | iHeartPodcasts | |
| 88 | 32 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 89 | 30 |  | You Are Not So Smart | You Are Not So Smart | |
| 90 | — |  | Mysterious Universe | 8th Kind | |
| 91 | 30 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 92 | 37 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 93 | 4 |  | Invisibilia | NPR | |
| 94 | 23 |  | "Lecture-casts"- A Lecture Series on General Chemistry | Mr. David Joshua Ferguson, MRSB MRSC | |
| 95 | 31 | T | The Engineering Passion Express | Brandon Donnelly | |
| 96 | 30 |  | When Science Finds a Way | Wellcome | |
| 97 | 34 |  | Mongabay Newscast | Mongabay.com | |
| 98 | 31 |  | How Wild | NPR | |
| 99 | 30 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 100 | 30 |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
