| 1 | 1 | W | Wild Tales | Nature Podcast | National Trust | |
| 2 | 1 |  | Curious Cases | BBC Radio 4 | |
| 3 | 9 |  | Science Vs | Spotify Studios | |
| 4 | — | S | SquaMates | SquaMates | |
| 5 | 4 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 6 | 2 | U | Unlocking Bryson's Brain | CBC | |
| 7 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 2 | I | Innrás froskanna | RÚV Hlaðvörp | |
| 9 | 1 |  | Science Weekly | The Guardian | |
| 10 | 3 |  | Instant Genius | Our Media | |
| 11 | 1 |  | Skeptoid | Brian Dunning | |
| 12 | 3 |  | New Books in Psychoanalysis | Marshall Poe | |
| 13 | 2 |  | Mysterious Universe | 8th Kind | |
| 14 | 3 |  | Radiolab | WNYC Studios | |
| 15 | 2 | I | It's a Very Exciting Time | Scott Vandehey & Chuck Lauer Vose | |
| 16 | 2 |  | Science In Action | BBC World Service | |
| 17 | 2 | O | Open Country | BBC Radio 4 | |
| 18 | 1 | S | Silicon Valley Astronomy Lectures | Silicon Valley Astronomy Lectures | |
| 19 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 20 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 21 | 78 |  | More or Less | BBC Radio 4 | |
| 22 | 1 |  | Deep Dive: MH370, Remastered | Jeff Wise | |
| 23 | 7 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 24 | 2 |  | Skeptics with a K | Skeptic Media Limited | |
| 25 | 2 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 26 | 2 | O | One World, One Health | One Health Trust | |
| 27 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 28 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 29 | 105 | ![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 | |
| 30 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 31 | 3 |  | The Psychology Podcast | iHeartPodcasts | |
| 32 | 94 |  | Quantitude | Greg Hancock & Patrick Curran | |
| 33 | 2 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 34 | — |  | The Astrophysics Podcast | Paul Duffell | |
| 35 | — |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 36 | 4 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 37 | 25 |  | Science Friday | Science Friday and WNYC Studios | |
| 38 | — | T | The Meaning Code | Karen Wong | |
| 39 | 19 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 40 | 4 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 41 | 3 | J | Just the Zoo of Us | Ellen & Christian Weatherford | |
| 42 | 33 | 2 | 24/7 | Beggi Ólafs | |
| 43 | 13 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 44 | 15 |  | Vetenskapsradion | Sveriges Radio | |
| 45 | 15 |  | BBC Inside Science | BBC Radio 4 | |
| 46 | 39 |  | Radiowissen | Bayerischer Rundfunk | |
| 47 | 105 |  | Why Do We Do That? | BBC Radio 4 | |
| 48 | 121 |  | This Week in Virology | Vincent Racaniello | |
| 49 | 136 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 50 | — | W | Wilderness Medicine Podcast | Wilderness Medical Society | |
| 51 | 11 |  | Safety Third | Safety Third | |
| 52 | 7 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 53 | 20 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 54 | 20 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 55 | 13 |  | Speaking of Psychology | American Psychological Association | |
| 56 | 13 |  | The Behavioral Observations Podcast with Matt Cicoria | Matt Cicoria | |
| 57 | 14 |  | Invisibilia | NPR | |
| 58 | 38 |  | Physics World Weekly Podcast | Physics World | |
| 59 | 24 | N | Nauka To Lubię | Tomasz Rożek | |
| 60 | 24 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 61 | 64 | N | NMBU Veterinærpodden | Marte Holmøy Bratteberg | |
| 62 | 108 |  | Nerdland Podcast | Lieven Scheire | |
| 63 | — | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 64 | 17 |  | Unexplainable | Vox | |
| 65 | 28 | V | Vetenskapsradions veckomagasin | Sveriges Radio | |
| 66 | 27 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 67 | 15 |  | Astrum Space | Astrum | |
| 68 | 1 |  | Discovery | BBC World Service | |
| 69 | 76 |  | CrowdScience | BBC World Service | |
| 70 | 9 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 71 | 30 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 72 | 30 | B | Bird Sounds | BirdSounds.com | |
| 73 | 30 | E | Epigenetics Podcast | Active Motif | |
| 74 | 23 |  | PlanetGeo: The Geology Podcast | Chris and Jesse | |
| 75 | 1 |  | Robinson's Podcast | Robinson Erhardt | |
| 76 | 2 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 77 | 31 |  | Quirks and Quarks | CBC | |
| 78 | 30 |  | All In The Mind | ABC | |
| 79 | 30 |  | SciShow Tangents | Complexly | |
| 80 | 30 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 81 | 28 |  | Origin Stories | The Leakey Foundation | |
| 82 | 28 |  | Podcast UFO | Martin Willis | |
| 83 | 28 |  | Paradigmepodden | Terje Toftenes | |
| 84 | 99 | M | Marie Curie | Raquel Verano | |
| 85 | — | A | A-kursen | Emma Frans och Clara Wallin | |
| 86 | 14 |  | Dr Karl Podcast | triplej | |
| 87 | 30 |  | Science Quickly | Scientific American | |
| 88 | 99 | L | La Suite dans les idées | France Culture | |
| 89 | 30 |  | Hjertesager Podcast | Hjertesager Podcast | |
| 90 | 29 | C | CO2 mon Amour | France Inter | |
| 91 | 3 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 92 | 3 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 93 | 30 |  | Universe Today Podcast | Fraser Cain | |
| 94 | 1 | B | Børnepsykologi | Rasmus Alenkær | |
| 95 | 31 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 96 | 31 |  | Short Wave | NPR | |
| 97 | 31 |  | New Books in Critical Theory | Marshall Poe | |
| 98 | 28 |  | Unexpected Elements | BBC World Service | |
| 99 | 26 |  | Are We There Yet? | Central Florida Public Media | |
| 100 | 26 | C | Climate Connections | Yale Center for Environmental Communication | |
