| 1 | 7 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 91 |  | The Science of Everything Podcast | James Fodor | |
| 3 | 1 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 4 | 1 |  | Science Friday | Science Friday and WNYC Studios | |
| 5 | 4 |  | Manifold | Steve Hsu | |
| 6 | 2 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 7 | 2 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 8 | 2 |  | Radiolab | WNYC Studios | |
| 9 | 2 |  | More or Less | BBC Radio 4 | |
| 10 | 1 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 11 | — |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 12 | 2 |  | The Plodcast | Our Media | |
| 13 | 1 |  | Progress, Potential, and Possibilities Podcast / Show | Ira Pastor | |
| 14 | 1 | B | BioSounds | Biosounds | |
| 15 | 1 |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 16 | 1 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 17 | 7 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 18 | 2 |  | Curious Cases | BBC Radio 4 | |
| 19 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 20 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 21 | 2 |  | This Week in Microbiology | Vincent Racaniello | |
| 22 | 2 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 23 | 2 |  | Foodie Pharmacology Podcast | Co-Conspiracy Entertainment | |
| 24 | 2 | T | The Bio Report | Levine Media Group | |
| 25 | 2 |  | The Future of Everything | Stanford Engineering | |
| 26 | — |  | The Science of Birds | Ivan Phillipsen | |
| 27 | 81 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 28 | 3 |  | Quantitude | Greg Hancock & Patrick Curran | |
| 29 | 2 | I | In Your Nature | By BirdWatch Ireland | |
| 30 | 156 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 31 | 10 |  | Making Sense with Sam Harris | Sam Harris | |
| 32 | 4 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 33 | — |  | Mind & Life | Mind & Life Institute | |
| 34 | 5 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 35 | 5 |  | Instant Genius | Our Media | |
| 36 | 1 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 37 | 157 |  | The Quanta Podcast | Quanta Magazine | |
| 38 | 14 |  | Mysterious Universe | 8th Kind | |
| 39 | 8 |  | AWESOME ASTRONOMY | Paul & Dr Jeni | |
| 40 | 8 | I | It's a Very Exciting Time | Scott Vandehey & Chuck Lauer Vose | |
| 41 | 6 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 42 | 9 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 43 | 5 |  | Unexplainable | Vox | |
| 44 | 60 | 2 | 24/7 | Beggi Ólafs | |
| 45 | 6 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 46 | 116 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 47 | 7 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 48 | 6 |  | The Michael Shermer Show | Michael Shermer | |
| 49 | 63 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 50 | 71 |  | The Couples Therapist Couch | Shane Birkel | |
| 51 | — |  | The Bulletproof Musician | Noa Kageyama | |
| 52 | 7 |  | Short Wave | NPR | |
| 53 | 19 |  | Unexpected Elements | BBC World Service | |
| 54 | 5 |  | Nature Podcast | Springer Nature Limited | |
| 55 | 25 |  | Somewhere in the Skies | SpectreVision Radio | |
| 56 | 20 |  | Science Vs | Spotify Studios | |
| 57 | 89 |  | Tilfinningakastið með Guðrúnu og Írisi | Tilfinningakastið | |
| 58 | — |  | Ask MIT Climate | MIT Climate Project | |
| 59 | 1 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 60 | 17 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 61 | 17 | P | Physicians' Gallery | Physicians' Gallery at RCPE | |
| 62 | 17 | T | Talking Biotech with Dr. Kevin Folta | Colabra | |
| 63 | 25 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 64 | 9 |  | The Orthobullets Podcast | Orthobullets | |
| 65 | 30 |  | Science Quickly | Scientific American | |
| 66 | 33 |  | SciShow Tangents | Complexly | |
| 67 | 98 |  | This Week in Cardiology | Medscape | |
| 68 | 29 |  | Most Terrifying Places in America | Travel Channel | |
| 69 | — |  | The Episodic Table of Elements | T. R. Appleton | |
| 70 | 4 |  | Total Disclosure Podcast | Tyler Roberts | |
| 71 | 4 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 72 | 17 |  | Ground Truths | Eric Topol | |
| 73 | 17 | S | Sage Nutrition & Dietetics | SAGE Publications Ltd. | |
| 74 | 17 |  | AuSPEN - Insights in Clinical Nutrition | AuSPEN | |
| 75 | 17 | V | Vov at Vide | Danmarks Frie Forskningsfond | |
| 76 | 20 |  | BBC Inside Science | BBC Radio 4 | |
| 77 | 40 | J | Just the Zoo of Us | Ellen & Christian Weatherford | |
| 78 | 47 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 79 | 33 |  | Bigfoot and Beyond with Cliff and Bobo | Bigfoot and Beyond LLC | |
| 80 | 33 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 81 | 31 |  | Speaking of Psychology | American Psychological Association | |
| 82 | 29 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 83 | 29 |  | All In The Mind | ABC | |
| 84 | 51 |  | Quirks and Quarks | CBC | |
| 85 | 53 |  | This Week in Virology | Vincent Racaniello | |
| 86 | 72 |  | The Behavioral Observations Podcast with Matt Cicoria | Matt Cicoria | |
| 87 | — |  | Cool Worlds Podcast | coolworldslab | |
| 88 | — |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 89 | 28 |  | Radiowissen | Bayerischer Rundfunk | |
| 90 | 27 |  | Science Weekly | The Guardian | |
| 91 | 29 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 92 | 28 |  | Science In Action | BBC World Service | |
| 93 | 28 |  | New Books in Critical Theory | Marshall Poe | |
| 94 | 26 |  | CrowdScience | BBC World Service | |
| 95 | 26 | W | Walkabout the Galaxy | Joshua Colwell, Adrienne Dove, and James Cooney | |
| 96 | 26 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 97 | 26 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 98 | 26 | T | The Paramedic Coach Podcast | The Paramedic Coach | |
| 99 | 25 |  | Brave New Planet | Pushkin Industries | |
| 100 | 25 |  | Safety Third | Safety Third | |
