| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | Science Vs | Spotify Studios | |
| 4 | 2 |  | Unexplainable | Vox | |
| 5 | — |  | Curious Cases | BBC Radio 4 | |
| 6 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 8 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | 16 |  | Regenerative Agriculture Podcast | John Kempf | |
| 10 | 13 |  | TED Talks Science and Medicine | TED | |
| 11 | 4 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 12 | 17 |  | Science Weekly | The Guardian | |
| 13 | 71 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 14 | 4 |  | Alive Again | iHeartPodcasts | |
| 15 | 23 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 16 | 7 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 17 | 22 |  | BBC Inside Science | BBC Radio 4 | |
| 18 | 5 |  | Radiolab | WNYC Studios | |
| 19 | 9 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 20 | 12 |  | Universe Today Podcast | Fraser Cain | |
| 21 | 24 | T | The Addiction Psychologist | Samuel Acuff and Noah Emery | |
| 22 | 38 |  | Living Planet | DW | |
| 23 | 44 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 24 | 7 |  | Speaking of Psychology | American Psychological Association | |
| 25 | 13 |  | More or Less | BBC Radio 4 | |
| 26 | 40 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 27 | 34 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 28 | 45 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 29 | 14 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 30 | 69 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 31 | 51 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 32 | 92 |  | ScienceStuff | iHeartPodcasts | |
| 33 | 19 |  | Discovery | BBC World Service | |
| 34 | 18 |  | Overheard at National Geographic | National Geographic | |
| 35 | 8 |  | The Michael Shermer Show | Michael Shermer | |
| 36 | 52 |  | Speed & Scale | TED | |
| 37 | 11 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 38 | 160 |  | Science Magazine Podcast | Science Magazine | |
| 39 | 20 |  | Blurry Creatures | Blurry Creatures | |
| 40 | 74 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 41 | — | N | New Books in Anthropology | New Books Network | |
| 42 | — |  | MinuteEarth | Minute Earth | |
| 43 | — | S | Safari Stories | Trunks and Tracks | |
| 44 | 23 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 45 | — |  | Rare Earth | BBC Radio 4 | |
| 46 | — | N | New Scientist Weekly | New Scientist | |
| 47 | 121 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 48 | — | W | What The Duck?! | ABC | |
| 49 | — |  | The Science of Everything Podcast | James Fodor | |
| 50 | — |  | Breaking Math Podcast | Autumn Phaneuf & Noah Giansiracusa | |
| 51 | — |  | Mind & Life | Mind & Life Institute | |
| 52 | — |  | Lost Women of Science | Lost Women of Science | |
| 53 | — | M | Math & Physics Podcast | Parker Levesque, Rayhan Walia | |
| 54 | — |  | Bugs Need Heroes | BugsNeedHeroes | |
| 55 | 33 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 56 | 36 | S | Students of Surgery | Martin Brand | |
| 57 | 33 | R | REvaluation Podcast | fteval | |
| 58 | 30 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 59 | 29 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 60 | 2 |  | Short Wave | NPR | |
| 61 | 5 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 62 | 31 |  | The Psychology Podcast | iHeartPodcasts | |
| 63 | 28 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 64 | 28 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 65 | 22 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 66 | 32 |  | That's Just Wild | Fresh Air | |
| 67 | 34 |  | TheThinkingAtheist | The Thinking Atheist | |
| 68 | 31 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 69 | 29 |  | Robinson's Podcast | Robinson Erhardt | |
| 70 | 29 |  | Astronomy Daily: Space News Updates | bitesz.com | |
| 71 | 27 |  | New Books in Psychoanalysis | Marshall Poe | |
| 72 | 20 | W | Why? with Emma Kennedy | Podmasters | |
| 73 | 18 | D | Dva i po psihijatra | PodMedia | |
| 74 | 27 |  | Deep Insights with Mining Review Africa | Mining Review Africa | |
| 75 | 32 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 76 | 34 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 77 | 31 |  | Mythfits | Pionaire Podcasting | |
| 78 | 30 |  | The Dairy Podcast Show | Wisenetix | |
| 79 | 30 |  | The Elective Rotation: A Critical Care Hospital Pharmacy Podcast | Pharmacy Joe | |
| 80 | 30 | B | BJA: British Journal of Anaesthesia | Rik Thomas, Podcast Editor | |
| 81 | 30 | M | Mongabay Explores | Mongabay.com | |
| 82 | 29 | S | Stories of Languages and Linguistics | language and linguistics enthusiasts at Georgia Tech | |
| 83 | 29 |  | Physics to God | Aaron Zimmer and Elie Feder | |
| 84 | 25 | T | The Royal College of Psychiatrists Podcast | RCPsych | |
| 85 | 28 |  | The Quanta Podcast | Quanta Magazine | |
| 86 | 1 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 87 | 23 |  | The Orthobullets Podcast | Orthobullets | |
| 88 | 13 |  | Science Friday | Science Friday and WNYC Studios | |
| 89 | 34 |  | CrowdScience | BBC World Service | |
| 90 | 25 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 91 | 29 |  | Science Quickly | Scientific American | |
| 92 | 24 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 93 | 30 | T | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 94 | 22 |  | Most Terrifying Places in America | Travel Channel | |
| 95 | 26 |  | A Life More Wild | Canopy & Stars | |
| 96 | 31 |  | Instant Genius | Our Media | |
| 97 | 16 |  | Invisibilia | NPR | |
| 98 | 28 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 99 | 17 |  | You Are Not So Smart | You Are Not So Smart | |
| 100 | 29 | C | Climate Change and Health Conversation with Nana Adwoa Achiaa | Climate & Health podcast | |
