| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | — |  | A Question of Science | The Francis Crick Institute | |
| 2 | 2 |  | Science Weekly | The Guardian | |
| 2 | 4 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 2 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 5 | 2 |  | More or Less | BBC Radio 4 | |
| 7 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 8 | — |  | Ologies with Alie Ward | Alie Ward | |
| 8 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 9 | 13 |  | Overshoot: Navigating a world beyond 1.5°C | Planet B Productions | |
| 9 | 1 | C | CountryWide | RTÉ Radio 1 | |
| 12 | — |  | Naturebang | BBC Radio 4 | |
| 12 | 5 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 12 | 7 |  | That's Just Wild | Fresh Air | |
| 13 | 2 |  | Science Vs | Spotify Studios | |
| 14 | 37 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 15 | 1 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 15 | 9 |  | The world, the universe and us | New Scientist | |
| 17 | 11 |  | Where The Wild Thoughts Are | Jo Marchant | |
| 18 | 25 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 18 | 2 |  | BBC Inside Science | BBC Radio 4 | |
| 19 | 2 |  | The Psychology Podcast | iHeartPodcasts | |
| 20 | 42 |  | All In The Mind | ABC | |
| 21 | 8 | B | Boring History for Sleep | Velvet | |
| 21 | 14 |  | Universe Today Podcast | Fraser Cain | |
| 22 | 2 |  | CrowdScience | BBC World Service | |
| 22 | 9 |  | Babbage from The Economist | The Economist | |
| 23 | — | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 24 | — |  | New Books in Critical Theory | Marshall Poe | |
| 24 | 1 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 25 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 25 | 13 |  | TED Talks Science and Medicine | TED | |
| 25 | 9 | N | New Scientist Weekly | New Scientist | |
| 27 | — |  | The Astrophysics Podcast | Paul Duffell | |
| 28 | 12 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 29 | 6 |  | This Week in Microbiology | Vincent Racaniello | |
| 31 | 7 |  | Why Do We Do That? | BBC Radio 4 | |
| 32 | 101 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 32 | 5 | I | In Your Nature | By BirdWatch Ireland | |
| 33 | 101 |  | Instant Genius | Our Media | |
| 33 | 2 |  | Astrum Space | Astrum | |
| 33 | 9 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 33 | 149 |  | Robinson's Podcast | Robinson Erhardt | |
| 34 | — | T | The Vertue Podcast | Shona Vertue | |
| 34 | — |  | Great Mysteries of Physics | The Conversation | |
| 34 | 1 |  | Unexpected Elements | BBC World Service | |
| 35 | — |  | Os três elementos | Os três elementos / TocaCast | |
| 35 | 6 |  | Discovery | BBC World Service | |
| 36 | — | L | Lung Cancer Considered | IASLC | |
| 36 | 53 |  | Accidental Gods | Accidental Gods | |
| 36 | 6 |  | Science In Action | BBC World Service | |
| 37 | — |  | This Week in Virology | Vincent Racaniello | |
| 38 | 3 |  | Drilled | Pushkin Industries | |
| 39 | 13 |  | SunCast | Nico Johnson | |
| 39 | — |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 40 | 15 |  | Stanford Medcast: Expert Voices in Medicine and Healthcare | Stanford University School of Medicine | |
| 41 | — |  | Our Common Nature | Seamus Donahoe & John Mulligan | |
| 41 | 96 |  | Dr Karl Podcast | triplej | |
| 42 | — | T | Talking Bat | NeilMiddleton | |
| 42 | 30 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 42 | 18 |  | Oceanography | Pine Forest Media | |
| 43 | 14 |  | The Plodcast | Our Media | |
| 43 | — |  | Sea Change | WWNO & WRKF | |
| 44 | — | T | The Climate Ambassador Podcast | The Climate Ambassador Podcast | |
| 44 | — |  | Ancient Aliens | PodcastOne | |
| 45 | 5 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 45 | — |  | Completely Arbortrary | Completely Arbortrary | |
| 46 | 8 | T | The Knepp Wilding Podcast | Knepp.co.uk | |
| 46 | 77 | R | Rebel Economics with Dr. Steve Keen | Dr. Steve Keen | |
| 47 | — |  | Understanding Childhood Cancer With Dr Geoff | Dr Geoffey McCowage, Senior Paediatric Oncologist, Sydney, Australia | |
| 47 | 16 |  | That UFO Podcast | That UFO Podcast | |
| 48 | — | H | How many geese? | Jack Baddams & Roddy Shaw | |
| 49 | 30 |  | Shocked | UChicago Institute for Climate and Sustainable Growth, Michael Greenstone, Amy Harder | |
| 50 | — | R | Resolution Foundation Events Podcast | externalaffairs | |
| 51 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 51 | — |  | GraveYard Tales | Adam Ballinger & Matt Rudolph | |
| 52 | 9 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 53 | — |  | This Week in Parasitism | Vincent Racaniello | |
| 53 | 25 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 54 | — | T | The Stem Cell Podcast | The Stem Cell Podcast | |
| 54 | — |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 55 | — |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 56 | 25 | N | New Scientist Colab Podcasts | DMG Media | |
| 56 | 98 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 57 | — | A | All Things Unexplained | Dr. Tim Mounce | |
| 57 | 33 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 57 | — |  | Ö1 Radiokolleg | ORF Ö1 | |
| 58 | 16 | B | Biomedical Publishing Podcast | Jacob Rosenberg | |
| 59 | 9 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 59 | — |  | BirdNote Daily | BirdNote | |
| 60 | — |  | Origin Stories | The Leakey Foundation | |
| 61 | 85 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 62 | — |  | Life List: A Birding Podcast | George Armistead, Alvaro Jaramillo, and Mollee Brown | |
| 63 | 46 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 64 | 10 |  | Big Picture Science | Big Picture Science | |
| 65 | 7 |  | Scotland Outdoors | BBC Radio Scotland | |
| 65 | 27 |  | Speaking of Psychology | American Psychological Association | |
| 68 | 32 |  | Unexplainable | Vox | |
