| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | 1 | W | Wild Tales | Nature Podcast | National Trust | |
| 3 | 179 |  | The Psychology Podcast | iHeartPodcasts | |
| 4 | 36 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 3 |  | Instant Genius | Our Media | |
| 6 | 2 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 7 | 2 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 8 | 2 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 9 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 10 | 7 |  | Radiolab | WNYC Studios | |
| 11 | 2 |  | Discovery | BBC World Service | |
| 12 | 2 |  | Robinson's Podcast | Robinson Erhardt | |
| 13 | 2 |  | Skeptoid | Brian Dunning | |
| 14 | 2 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 15 | — | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 16 | 3 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 17 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 18 | 2 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 19 | — |  | Deep Dive: MH370, Remastered | Jeff Wise | |
| 20 | 13 |  | Science Vs | Spotify Studios | |
| 21 | 170 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 22 | 3 |  | Scotland Outdoors | BBC Radio Scotland | |
| 23 | 3 | B | Best of Natural History Radio | BBC Radio 4 | |
| 24 | 3 | T | The Natural History Podcast | James Mills | |
| 25 | 7 |  | Science Weekly | The Guardian | |
| 26 | 8 |  | Unexpected Elements | BBC World Service | |
| 27 | 3 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 28 | 17 | S | Stimulating Brains | Andreas Horn | |
| 29 | 7 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 30 | 12 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 31 | 100 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 32 | 6 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 33 | 8 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 34 | 19 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 35 | 77 | N | Nauka To Lubię | Tomasz Rożek | |
| 36 | 11 |  | Nature Podcast | Springer Nature Limited | |
| 37 | — |  | Bigfoot Society | Jeremiah Byron | |
| 38 | 15 |  | Unexplainable | Vox | |
| 39 | 114 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 40 | 62 | ![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 | |
| 41 | — | I | It's a Very Exciting Time | Scott Vandehey & Chuck Lauer Vose | |
| 42 | 13 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 43 | — |  | Dr Karl Podcast | triplej | |
| 44 | — |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 45 | 12 | E | Exolore: facts-based fictional worldbuilding | Multitude | |
| 46 | 5 | 2 | 24/7 | Beggi Ólafs | |
| 47 | 38 |  | Science Friday | Science Friday and WNYC Studios | |
| 48 | 16 |  | Skeptics with a K | Skeptic Media Limited | |
| 49 | 40 |  | More or Less | BBC Radio 4 | |
| 50 | 41 |  | Somewhere in the Skies | SpectreVision Radio | |
| 51 | 3 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 52 | 80 |  | RumSnak | Tina Ibsen + Anders Høeg Nissen | |
| 53 | 137 | P | Purr Podcast | Jolle Kirpensteijn & Susan Little | |
| 54 | — |  | Radiowissen | Bayerischer Rundfunk | |
| 55 | — |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 56 | — |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 57 | 6 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 58 | 31 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 59 | 31 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 60 | 74 |  | All In The Mind | ABC | |
| 61 | 18 |  | Ask a Spaceman! | Paul M. Sutter | |
| 62 | 32 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 63 | 63 | Ö | Ö1 Wissen aktuell | ORF Ö1 | |
| 64 | 33 |  | SciShow Tangents | Complexly | |
| 65 | 30 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 66 | 4 |  | The Science of Birds | Ivan Phillipsen | |
| 67 | 9 |  | The DemystifySci Podcast | DemystifySci | |
| 68 | 57 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 69 | 33 |  | Podcast UFO | Martin Willis | |
| 70 | 33 |  | Manifold | Steve Hsu | |
| 71 | 33 | N | Naked Scientists, In Short Special Editions Podcast | The Naked Scientists | |
| 72 | 33 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 73 | 29 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 74 | 28 |  | Total Disclosure Podcast | Tyler Roberts | |
| 75 | 2 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 76 | — |  | Off-Nominal | Jake Robins, Anthony Colangelo | |
| 77 | 28 |  | Safety Third | Safety Third | |
| 78 | 28 |  | Kosmographia | Randall Carlson | |
| 79 | 27 |  | Speaking of Psychology | American Psychological Association | |
| 80 | 26 | W | Waterlands | Wildfowl & Wetlands Trust | |
| 81 | 26 |  | Das Wissen | SWR | SWR | |
| 82 | 26 |  | This Week in Virology | Vincent Racaniello | |
| 83 | 26 | M | Make Space For Nature | NatureScot | |
| 84 | 26 |  | MCHD Paramedic Podcast | Montgomery County Hospital District | |
| 85 | 26 | B | Bird Sounds | BirdSounds.com | |
| 86 | 26 |  | Main Engine Cut Off | Anthony Colangelo | |
| 87 | 26 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
| 88 | 25 |  | ABA Inside Track | ABA Inside Track | |
| 89 | 25 |  | Big Picture Science | Big Picture Science | |
| 90 | 25 |  | Vetenskapsradion | Sveriges Radio | |
| 91 | 25 |  | Astrum Space | Astrum | |
| 92 | 25 |  | The Couples Therapist Couch | Shane Birkel | |
| 93 | 25 | F | Fossils and Fiction | Travis Holland and Alyssa Fjeld. | |
| 94 | 25 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 95 | 25 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 96 | 25 |  | Invisibilia | NPR | |
| 97 | 3 |  | Why Do We Do That? | BBC Radio 4 | |
| 98 | 26 |  | A Life More Wild | Canopy & Stars | |
| 99 | 1 |  | The Hydrogen Podcast | Paul Rodden | |
| 100 | 27 |  | CrowdScience | BBC World Service | |
