| 1 | — |  | Instant Genius | Our Media | |
| 2 | 20 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 3 | 40 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 4 | 20 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 5 | 20 | W | Wild Tales | Nature Podcast | National Trust | |
| 6 | 3 |  | Robinson's Podcast | Robinson Erhardt | |
| 7 | 3 |  | Discovery | BBC World Service | |
| 8 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 9 | 4 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 10 | 4 |  | Skeptoid | Brian Dunning | |
| 11 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 12 | 4 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 13 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 14 | 5 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 15 | 2 |  | Radiolab | WNYC Studios | |
| 16 | 6 |  | Scotland Outdoors | BBC Radio Scotland | |
| 17 | 6 | B | Best of Natural History Radio | BBC Radio 4 | |
| 18 | 6 | T | The Natural History Podcast | James Mills | |
| 19 | 5 |  | Science Weekly | The Guardian | |
| 20 | 3 |  | Unexplainable | Vox | |
| 21 | 27 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 22 | 19 |  | Ologies with Alie Ward | Alie Ward | |
| 23 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 24 | — |  | Vetenskapsradion | Sveriges Radio | |
| 25 | 164 | F | Fossils and Fiction | Travis Holland and Alyssa Fjeld. | |
| 26 | 4 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 27 | 9 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 28 | — |  | Naked Astronomy, from the Naked Scientists | The Naked Scientists | |
| 29 | 21 | 2 | 24/7 | Beggi Ólafs | |
| 30 | 10 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 31 | 59 |  | The Plodcast | Our Media | |
| 32 | — | V | Vetenskapsradions veckomagasin | Sveriges Radio | |
| 33 | 14 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 34 | 84 |  | SciShow Tangents | Complexly | |
| 35 | 11 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 36 | 13 |  | More or Less | BBC Radio 4 | |
| 37 | 11 |  | Science Friday | Science Friday and WNYC Studios | |
| 38 | 17 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 39 | 14 |  | Bigfoot and Beyond with Cliff and Bobo | Bigfoot and Beyond LLC | |
| 40 | 5 |  | Somewhere in the Skies | SpectreVision Radio | |
| 41 | 28 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 42 | 26 | W | Waterlands | Wildfowl & Wetlands Trust | |
| 43 | 16 |  | The Science of Birds | Ivan Phillipsen | |
| 44 | 16 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 45 | 37 |  | Nature Podcast | Springer Nature Limited | |
| 46 | 12 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 47 | 15 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 48 | 84 |  | This Week in Virology | Vincent Racaniello | |
| 49 | — |  | Quirks and Quarks | CBC | |
| 50 | 1 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 51 | 84 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 52 | 18 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 53 | 22 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 54 | 12 |  | Astrum Space | Astrum | |
| 55 | 69 | ![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 | |
| 56 | 15 |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 57 | 22 | F | Farming Today | BBC Radio 4 | |
| 58 | 26 |  | The Michael Shermer Show | Michael Shermer | |
| 59 | 14 |  | Safety Third | Safety Third | |
| 60 | 18 |  | Why Do We Do That? | BBC Radio 4 | |
| 61 | 24 |  | Curious Cases | BBC Radio 4 | |
| 62 | 33 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 63 | 67 |  | Invisibilia | NPR | |
| 64 | 103 |  | The DemystifySci Podcast | DemystifySci | |
| 65 | 120 |  | ABA Inside Track | ABA Inside Track | |
| 66 | — |  | Star Tales and Cocktails | Sirisha Bandla and Jacki Cortese | |
| 67 | — | T | The Future of Work Podcast | International Labour Organization | |
| 68 | 14 |  | Crazy Town | Post Carbon Institute | |
| 69 | 33 | D | Dagbók Urriða | Ólafur Guðbjartsson | |
| 70 | 32 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 71 | 94 | N | Nauka To Lubię | Tomasz Rożek | |
| 72 | 33 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 73 | 33 |  | Eons: Surviving Deep Time | PBS | |
| 74 | 13 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 75 | 31 |  | Big Picture Science | Big Picture Science | |
| 76 | 29 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 77 | 28 |  | A Life More Wild | Canopy & Stars | |
| 78 | 15 |  | The Hydrogen Podcast | Paul Rodden | |
| 79 | 6 |  | Short Wave | NPR | |
| 80 | 16 |  | ScienceStuff | iHeartPodcasts | |
| 81 | 29 |  | You Are Not So Smart | You Are Not So Smart | |
| 82 | 9 |  | Physics World Weekly Podcast | Physics World | |
| 83 | — | B | Bird Sounds | BirdSounds.com | |
| 84 | 28 |  | Mysterious Universe | 8th Kind | |
| 85 | 12 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 86 | 29 | D | Digging a Hole: The Legal Theory Podcast | Digging a Hole Podcast | |
| 87 | 28 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 88 | 30 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 89 | 29 |  | Science Vs | Spotify Studios | |
| 90 | 29 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 91 | 29 |  | CrowdScience | BBC World Service | |
| 92 | 27 |  | Science In Action | BBC World Service | |
| 93 | 9 | Ö | Ö1 Wissen aktuell | ORF Ö1 | |
| 94 | 27 | 超 | 超リアルな行動心理学 | FERMONDO | |
| 95 | 27 |  | New Books in Critical Theory | Marshall Poe | |
| 96 | 24 |  | The Long Run with Luke Timmerman | Timmerman Report | |
| 97 | 23 |  | UFO Chronicles Podcast | Nik Hunter | |
| 98 | 23 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 99 | 23 |  | Unexpected Elements | BBC World Service | |
| 100 | 67 |  | Speaking of Psychology | American Psychological Association | |
