| 1 | 52 |  | The Science of Birds | Ivan Phillipsen | |
| 2 | — |  | The Wild with Chris Morgan | KUOW News and Information | |
| 3 | 26 |  | Scotland Outdoors | BBC Radio Scotland | |
| 4 | 166 |  | Skeptics with a K | Skeptic Media Limited | |
| 5 | — |  | Decouple | Dr. Chris Keefer | |
| 6 | 5 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 7 | 5 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 5 |  | Instant Genius | Our Media | |
| 9 | 5 |  | Mind & Life | Mind & Life Institute | |
| 10 | 5 |  | The Science of Everything Podcast | James Fodor | |
| 11 | 5 |  | More or Less | BBC Radio 4 | |
| 12 | 5 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 13 | 4 |  | Unexplainable | Vox | |
| 14 | 4 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 15 | 7 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 16 | 5 | M | My Favorite Theorem | Kevin Knudson & Evelyn Lamb | |
| 17 | 4 | P | Physical Attraction | PhysicsPodcast.com | |
| 18 | 6 |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 19 | 5 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 20 | 5 |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 21 | 4 |  | Science Friday | Science Friday and WNYC Studios | |
| 22 | 6 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 23 | 5 |  | Manifold | Steve Hsu | |
| 24 | 5 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 25 | 5 |  | Radiolab | WNYC Studios | |
| 26 | 5 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 27 | 4 |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 28 | 6 |  | The Plodcast | Our Media | |
| 29 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 30 | 6 |  | Progress, Potential, and Possibilities Podcast / Show | Ira Pastor | |
| 31 | 6 | B | BioSounds | Biosounds | |
| 32 | 7 |  | Science Weekly | The Guardian | |
| 33 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 34 | 4 |  | Nature Guys | Nature Guys | |
| 35 | 9 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 36 | 8 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 37 | 78 |  | Science Vs | Spotify Studios | |
| 38 | 67 | 2 | 24/7 | Beggi Ólafs | |
| 39 | 137 |  | The Psychology Podcast | iHeartPodcasts | |
| 40 | 10 |  | Ologies with Alie Ward | Alie Ward | |
| 41 | 1 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 42 | 75 |  | Nature Podcast | Springer Nature Limited | |
| 43 | 8 |  | Curious Cases | BBC Radio 4 | |
| 44 | 1 |  | SciShow Tangents | Complexly | |
| 45 | 87 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 46 | — | F | Fasciaguiden | Fasciaguiden | |
| 47 | 7 |  | Astrum Space | Astrum | |
| 48 | 4 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 49 | 17 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 50 | 144 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
| 51 | 11 |  | Radiowissen | Bayerischer Rundfunk | |
| 52 | — | W | Wissenschaft auf die Ohren | Helmholtz-Gemeinschaft | |
| 53 | 122 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 54 | — | F | Fossils and Fiction | Travis Holland and Alyssa Fjeld. | |
| 55 | — |  | Rekommandert | HENRI & Acast | |
| 56 | 24 |  | World’s Wildest: Tales of Earth’s Most Extreme Creatures | Maya Higa & Connor O'Brien | |
| 57 | 24 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 58 | 7 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 59 | 25 |  | Science Quickly | Scientific American | |
| 60 | 77 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 61 | 92 |  | Invisibilia | NPR | |
| 62 | 94 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 63 | — |  | Stanford Psychology Podcast | Stanford Psychology | |
| 64 | 1 |  | This Week in Virology | Vincent Racaniello | |
| 65 | 20 |  | This Week in Microbiology | Vincent Racaniello | |
| 66 | 20 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 67 | 20 |  | Foodie Pharmacology Podcast | Co-Conspiracy Entertainment | |
| 68 | 20 | T | The Bio Report | Levine Media Group | |
| 69 | 20 |  | The Future of Everything | Stanford Engineering | |
| 70 | 10 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 71 | 35 |  | Going Wild with Dr. Rae Wynn-Grant | PBS Nature | |
| 72 | 35 |  | Somewhere in the Skies | SpectreVision Radio | |
| 73 | 38 |  | The Michael Shermer Show | Michael Shermer | |
| 74 | 33 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 75 | 4 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 76 | 12 |  | Quantitude | Greg Hancock & Patrick Curran | |
| 77 | 12 | I | In Your Nature | By BirdWatch Ireland | |
| 78 | 46 |  | Total Disclosure Podcast | Tyler Roberts | |
| 79 | 29 | N | Naked Scientists, In Short Special Editions Podcast | The Naked Scientists | |
| 80 | — | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 81 | 12 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 82 | 30 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 83 | 13 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 84 | 65 |  | Nerdland Podcast | Lieven Scheire | |
| 85 | 30 |  | Speaking of Psychology | American Psychological Association | |
| 86 | 44 |  | Cool Worlds Podcast | coolworldslab | |
| 87 | 31 |  | Science In Action | BBC World Service | |
| 88 | 31 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 89 | 31 |  | The Micah Hanks Program | Micah Hanks | |
| 90 | 31 |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 91 | 30 |  | Short Wave | NPR | |
| 92 | 30 |  | The Couples Therapist Couch | Shane Birkel | |
| 93 | 18 |  | AWESOME ASTRONOMY | Paul & Dr Jeni | |
| 94 | 5 |  | Science Magazine Podcast | Science Magazine | |
| 95 | 29 |  | Are We There Yet? | Central Florida Public Media | |
| 96 | 29 |  | Drilled | Pushkin Industries | |
| 97 | 14 |  | Safety Third | Safety Third | |
| 98 | 29 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 99 | 31 |  | Mysterious Universe | 8th Kind | |
| 100 | 31 |  | Ask a Spaceman! | Paul M. Sutter | |
