| 1 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 1 | — |  | Radiolab | WNYC Studios | |
| 2 | 1 |  | Curious Cases | BBC Radio 4 | |
| 2 | 1 |  | Science Weekly | The Guardian | |
| 3 | 2 |  | Shocked | UChicago Institute for Climate and Sustainable Growth, Michael Greenstone, Amy Harder | |
| 4 | 4 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 4 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 2 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 7 | 3 |  | BBC Inside Science | BBC Radio 4 | |
| 7 | 58 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 9 | 41 |  | A Life More Wild | Canopy & Stars | |
| 9 | 5 |  | A Question of Science | The Francis Crick Institute | |
| 9 | 26 |  | Overheard at National Geographic | National Geographic | |
| 10 | 5 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 10 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 10 | 6 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 13 | 3 |  | More or Less | BBC Radio 4 | |
| 14 | 99 |  | Short Wave | NPR | |
| 15 | 4 | T | The Knepp Wilding Podcast | Knepp.co.uk | |
| 15 | 3 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 16 | 7 |  | The Life Scientific | BBC Radio 4 | |
| 17 | 2 | I | In Your Nature | By BirdWatch Ireland | |
| 17 | 8 | C | CountryWide | RTÉ Radio 1 | |
| 18 | 8 | B | Boring History for Sleep | Velvet | |
| 18 | 6 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 19 | 1 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 22 | 3 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 22 | 17 |  | Speaking of Psychology | American Psychological Association | |
| 22 | 35 |  | Science Vs | Spotify Studios | |
| 23 | 2 |  | Nature Podcast | Springer Nature Limited | |
| 24 | 3 | P | Pharmacy Microteaches | Dave Abbott | |
| 25 | 8 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 25 | 1 |  | That UFO Podcast | That UFO Podcast | |
| 25 | 15 |  | Instant Genius | Our Media | |
| 26 | 13 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 26 | 67 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 27 | 28 |  | Science Friday | Science Friday and WNYC Studios | |
| 27 | 15 |  | The Michael Shermer Show | Michael Shermer | |
| 27 | 146 |  | From The Shadows | Shane Grove | |
| 27 | 34 |  | The Plodcast | Our Media | |
| 28 | — | Э | Эффект Наблюдателя | Эффект Наблюдателя | |
| 29 | 14 |  | CrowdScience | BBC World Service | |
| 29 | 8 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 30 | 7 | T | The Climate Ambassador Podcast | The Climate Ambassador Podcast | |
| 31 | 13 |  | This Week in Virology | Vincent Racaniello | |
| 31 | 5 |  | Breaking Down: Collapse | Kory & Kellan | |
| 32 | 13 |  | Overshoot: Navigating a world beyond 1.5°C | Planet B Productions | |
| 33 | 2 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 33 | 154 | F | Farming for Nature | Farming for Nature | |
| 34 | 2 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 34 | 9 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 34 | 9 |  | Where The Wild Thoughts Are | Jo Marchant | |
| 34 | — |  | New Books in Critical Theory | Marshall Poe | |
| 35 | 7 |  | Robinson's Podcast | Robinson Erhardt | |
| 35 | 10 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 36 | 10 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 36 | — | F | Fire Science Show | Wojciech Wegrzynski | |
| 37 | — |  | Safer Chemicals Podcast | European Chemicals Agency | |
| 37 | 130 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 37 | — |  | Found in Space: A Science Podcast for Kids and Teens | Arwen Hubbard | |
| 38 | — |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 38 | — | E | Entropy Rising | Jacob and Lucas | |
| 39 | — | L | Les idées larges | ARTE Radio | |
| 39 | — | S | Saúde em Público | ISPUP | |
| 40 | — |  | The Episodic Table of Elements | T. R. Appleton | |
| 40 | 32 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 40 | — |  | Star Diary | BBC Sky at Night Magazine | |
| 41 | — | T | The BVOA Podcast | bvoa | |
| 41 | 12 | W | Wild Tales | Nature Podcast | National Trust | |
| 41 | — |  | Green Cover Podcast | Keith Berns | |
| 42 | 9 |  | The Science Show | ABC | |
| 42 | — |  | The Science of Birds | Ivan Phillipsen | |
| 42 | 8 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 43 | 1 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 43 | — | R | Real Science Exchange-Dairy | Balchem Animal Nutrition & Health | |
| 44 | 12 | F | Four Eyes | Modern Optometry | |
| 44 | — | W | Waterlands | Wildfowl & Wetlands Trust | |
| 45 | 3 | I | Into The Paranormal, Podcast With Tony Brueski | Real Story Media | |
| 46 | 17 |  | Astrum Space | Astrum | |
| 46 | 3 | E | Energized: The Future of Energy | GZERO Media | |
| 47 | 7 |  | Kindred | Kate Coffin | |
| 48 | — |  | Where science talks by Campus Biotech | Campus Biotech | |
| 48 | — | B | Big Bang Theory Rap By the Big Banger Boys | Victor Henry | |
| 49 | — | A | Amedeo Balbi | Cosa sappiamo dell'universo | Amedeo Balbi | |
| 51 | 12 |  | Unexplainable | Vox | |
| 52 | 9 |  | Discovery | BBC World Service | |
| 53 | 15 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 54 | 23 |  | ExtinctZoo | ExtinctZoo | |
| 55 | 21 | M | Making Science with Tom Whipple | The Times | |
| 57 | 30 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 59 | 23 | T | The Aspiring Psychologist Podcast | Dr Marianne Trent | |
| 59 | 30 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 61 | 29 |  | The Quanta Podcast | Quanta Magazine | |
| 61 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 62 | 24 |  | Universe Today Podcast | Fraser Cain | |
| 62 | 29 |  | Science Magazine Podcast | Science Magazine | |
| 63 | 32 |  | The Psychology Podcast | iHeartPodcasts | |
| 64 | 24 |  | Naturebang | BBC Radio 4 | |
