| 1 | — | S | Students of Surgery | Martin Brand | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | 8 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 2 |  | Radiolab | WNYC Studios | |
| 6 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 1 |  | Unexplainable | Vox | |
| 9 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 10 | 10 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 11 | 2 |  | Blurry Creatures | Blurry Creatures | |
| 12 | 6 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 13 | 3 |  | Curious Cases | BBC Radio 4 | |
| 14 | 32 |  | The Psychology Podcast | iHeartPodcasts | |
| 15 | 4 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 16 | 127 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 17 | 32 |  | Science Friday | Science Friday and WNYC Studios | |
| 18 | 25 |  | Unexpected Elements | BBC World Service | |
| 19 | 1 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 20 | 4 |  | You Are Not So Smart | You Are Not So Smart | |
| 21 | 5 |  | Science Vs | Spotify Studios | |
| 22 | 5 |  | More or Less | BBC Radio 4 | |
| 23 | 5 |  | The Astrophysics Podcast | Paul Duffell | |
| 24 | 13 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 25 | 32 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 26 | 32 |  | That UFO Podcast | That UFO Podcast | |
| 27 | 35 |  | BBC Inside Science | BBC Radio 4 | |
| 28 | 78 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 29 | 105 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 30 | 16 |  | The Michael Shermer Show | Michael Shermer | |
| 31 | 44 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 32 | — | S | Sound Healing / Sound Bath | Omandala Vietnam | |
| 33 | 108 | ![Cosmosis [Formerly The UFO Rabbit Hole]](https://is1-ssl.mzstatic.com/image/thumb/Podcasts211/v4/6e/50/4f/6e504f3a-5967-0f9a-1858-77a5f070b7d4/mza_10360255510263335732.jpeg/100x100bb.jpg) | Cosmosis [Formerly The UFO Rabbit Hole] | Kelly Chase & Jay Christopher King | |
| 34 | 78 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 35 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 36 | 108 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 37 | 22 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 38 | 122 |  | Mind & Life | Mind & Life Institute | |
| 39 | 108 |  | The Vatican Observatory Podcast | Vatican Observatory | |
| 40 | 18 |  | Das Wissen | SWR | SWR | |
| 41 | — |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 42 | 89 |  | The Orthobullets Podcast | Orthobullets | |
| 43 | 24 |  | ScienceStuff | iHeartPodcasts | |
| 44 | 112 |  | Somewhere in the Skies | SpectreVision Radio | |
| 45 | — | T | The Chaos Theory | Chaos Theory | |
| 46 | — |  | The Quanta Podcast | Quanta Magazine | |
| 47 | — |  | Quirks and Quarks | CBC | |
| 48 | — |  | Earthfiles Podcast with Linda Moulton Howe | Linda Moulton Howe | |
| 49 | — | M | Math & Physics Podcast | Parker Levesque, Rayhan Walia | |
| 50 | — |  | The Joy of x | Steven Strogatz and Quanta Magazine | |
| 51 | — |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 52 | — |  | Stanford Psychology Podcast | Stanford Psychology | |
| 53 | — |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 54 | — | S | Stanford Psychology Podcast | Stanford Psychology | |
| 55 | — |  | The Couples Therapist Couch | Shane Birkel | |
| 56 | — | P | Psychology | Yale School of Medicine | |
| 57 | — | S | Superbugs & You | CIDRAP | |
| 58 | — | T | Theory of Relativity by Albert Einstein | Inception Point Ai | |
| 59 | — | C | Calling All Beings | CallingAllBeings | |
| 60 | — |  | Nice Genes! | Genome BC | |
| 61 | — |  | Quantitude | Greg Hancock & Patrick Curran | |
| 62 | — |  | Two Bees in a Podcast | UF/IFAS Honey Bee Lab | |
| 63 | — | H | Here's Why | UL Research Institutes | |
| 64 | — | O | Off the Radar | The National Weather Desk | |
| 65 | — | T | The Rabbit Hole Conversations | Kelly Chase | |
| 66 | — | B | Beauty in All Things | The Lost Gardens of Heligan | |
| 67 | — | E | Epidemiology Counts from the Society for Epidemiologic Research | Sue Bevan - Society for Epidemiologic Research (SER) | |
| 68 | — |  | RadCast | RadCast | |
| 69 | 44 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 70 | 26 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 71 | 7 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 72 | 51 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 73 | 12 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 74 | 103 |  | Bigfoot Society | Jeremiah Byron | |
| 75 | — |  | Emergency Medicine Board Bombs | EM Board Bombs | |
| 76 | 9 |  | Living Planet | DW | |
| 77 | 44 |  | Accidental Gods | Accidental Gods | |
| 78 | 42 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 79 | 56 | R | Repair - A podcast about rangelands | REPAiR Project | |
| 80 | 51 |  | Safety Third | Safety Third | |
| 81 | 9 |  | Overheard at National Geographic | National Geographic | |
| 82 | 35 |  | Discovery | BBC World Service | |
| 83 | 53 | A | Animals at Home Network | AAHN | |
| 84 | 58 | U | Unpopular Neuroscience | Patrick D. Watson | |
| 85 | 58 | T | The IR Juniors Podcast | IR Juniors | |
| 86 | 55 | N | Neuroscience of Coaching | Mirasee FM | |
| 87 | 55 |  | Lost Women of Science | Lost Women of Science | |
| 88 | 34 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 89 | 55 |  | The History of Chemistry | Steve Cohen | |
| 90 | 55 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 91 | — | T | The Life Of The Mind by Steven Pinker | This Is 42 | |
| 92 | 54 |  | The Episodic Table of Elements | T. R. Appleton | |
| 93 | 54 | T | The Zoology Ramblings Podcast | Robi Watkinson and Emma Hodson | |
| 94 | 54 | T | The Engineering Passion Express | Brandon Donnelly | |
| 95 | 54 | A | astro[sound]bites | astrosoundbites | |
| 96 | 54 |  | Sustainability, Climate Change, Renewable Energy, Politics, Activism, Biodiversity, Carbon Footprint, Wildlife, Regenerative | Mia Funk | |
| 97 | 38 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 98 | 78 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 99 | 43 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 100 | 3 |  | Science In Action | BBC World Service | |
