| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 5 | 2 |  | Unexplainable | Vox | |
| 6 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 1 |  | Science Vs | Spotify Studios | |
| 8 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 6 |  | More or Less | BBC Radio 4 | |
| 10 | 3 |  | ScienceStuff | iHeartPodcasts | |
| 11 | 11 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 12 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 13 | 6 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 14 | 25 |  | Speaking of Psychology | American Psychological Association | |
| 15 | 6 |  | The Michael Shermer Show | Michael Shermer | |
| 16 | 12 |  | The Psychology Podcast | iHeartPodcasts | |
| 17 | 3 |  | Curious Cases | BBC Radio 4 | |
| 18 | 30 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 19 | 8 |  | Making Sense with Sam Harris | Sam Harris | |
| 20 | 6 |  | Science Friday | Science Friday and WNYC Studios | |
| 21 | 4 |  | Blurry Creatures | Blurry Creatures | |
| 22 | 10 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 23 | 7 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 24 | 27 | A | Ask the Naked Scientists | Dr Chris Smith | |
| 25 | 1 |  | Science Weekly | The Guardian | |
| 26 | 37 |  | BirdNote Daily | BirdNote | |
| 27 | 59 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 28 | 69 | S | Students of Surgery | Martin Brand | |
| 29 | 70 |  | Ancient Aliens | PodcastOne | |
| 30 | 79 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 31 | 21 |  | Radiolab | WNYC Studios | |
| 32 | 79 |  | Safety Third | Safety Third | |
| 33 | 9 |  | Overheard at National Geographic | National Geographic | |
| 34 | 94 |  | All In The Mind | ABC | |
| 35 | 12 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 36 | — |  | Science Magazine Podcast | Science Magazine | |
| 37 | — |  | Up From Dust | KCUR Studios | |
| 38 | — | T | The We Society | AcSS | |
| 39 | — |  | The Science of Everything Podcast | James Fodor | |
| 40 | — |  | Great Mysteries of Physics | The Conversation | |
| 41 | 51 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 42 | — | T | The Addiction Psychologist | Samuel Acuff and Noah Emery | |
| 43 | — | T | The Neuro Clinic | Ingram Wright | |
| 44 | — |  | Nature Guys | Nature Guys | |
| 45 | 14 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 46 | 14 | M | Mathematics Simplified | Anjali Sharma | |
| 47 | 26 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 48 | 21 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 49 | 16 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 50 | 19 | W | Whales | Quiet. Please | |
| 51 | 26 |  | BBC Inside Science | BBC Radio 4 | |
| 52 | 36 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 53 | 24 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 54 | 24 |  | Universe Today Podcast | Fraser Cain | |
| 55 | 6 | A | AfroPop Music 4 D Soul | BlackBoiAmazing | |
| 56 | 66 | N | Nature's a Hoot | Hawk Conservancy Trust | |
| 57 | 25 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 58 | 23 |  | Get Out Alive | Ashley Bray | |
| 59 | 25 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 60 | 18 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 61 | 18 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 62 | 24 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 63 | 38 |  | Living Planet | DW | |
| 64 | 27 |  | iLukuluku | All Ears FM | |
| 65 | 21 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 66 | 17 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 67 | 22 |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 68 | 10 |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 69 | 28 |  | Dr Giles Yeo Chews the Fat | Orion Publishing Ltd. | |
| 70 | 30 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 71 | 24 | S | SCIENCE STUFF | Manyu shetty | |
| 72 | 6 |  | New Books in Critical Theory | Marshall Poe | |
| 73 | — | B | BJA: British Journal of Anaesthesia | Rik Thomas, Podcast Editor | |
| 74 | 28 |  | Century Lives | Stanford Center on Longevity | |
| 75 | 42 |  | Regenerative Agriculture Podcast | John Kempf | |
| 76 | 23 |  | The Orthobullets Podcast | Orthobullets | |
| 77 | — |  | HOLOSKY PODCAST | Holosky Podcast | |
| 78 | 40 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 79 | 22 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 80 | 18 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 81 | 29 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 82 | 1 |  | You Are Not So Smart | You Are Not So Smart | |
| 83 | 15 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 84 | 48 |  | BrainStuff | iHeartPodcasts | |
| 85 | 15 | S | Saving the World From Bad Ideas | WePlanet | |
| 86 | 32 |  | Mongabay Newscast | Mongabay.com | |
| 87 | 14 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 88 | 21 | B | BJA Education Podcasts | BJA Education | |
| 89 | 4 |  | That UFO Podcast | That UFO Podcast | |
| 90 | 52 |  | Nephilim Death Squad | TopLobsta Productions | |
| 91 | 27 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 92 | 36 | E | Educational Psychology for Everyone! | Katja Upadyaya (University of Helsinki) | |
| 93 | 11 |  | The Life Scientific | BBC Radio 4 | |
| 94 | 38 |  | Science In Action | BBC World Service | |
| 95 | 30 |  | Biotech Hangout | Daphne Zohar, Josh Schimmer, Brad Loncar, Tim Opler & more | |
| 96 | 41 |  | Safeguarding Sound Science | National Center for Science Education | |
| 97 | 31 |  | Completely Arbortrary | Completely Arbortrary | |
| 98 | — | N | Neuroscience of Coaching | Mirasee FM | |
| 99 | — |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 100 | 29 | N | National Geographic Magazine | Radio Eye | |
