| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | Radiolab | WNYC Studios | |
| 4 | — |  | Curious Cases | BBC Radio 4 | |
| 4 | 2 | B | Boring History for Sleep | Velvet | |
| 5 | 4 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 5 | 2 |  | More or Less | BBC Radio 4 | |
| 5 | — | F | Futureproof with Jonathan McCrea | Newstalk | |
| 10 | 4 |  | Science Weekly | The Guardian | |
| 10 | — |  | BBC Inside Science | BBC Radio 4 | |
| 11 | — |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 11 | 4 | C | CountryWide | RTÉ Radio 1 | |
| 12 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 12 | — |  | The Life Scientific | BBC Radio 4 | |
| 13 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 13 | — |  | Unexplainable | Vox | |
| 13 | 6 |  | Science Vs | Spotify Studios | |
| 17 | 1 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 17 | — |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 17 | 12 |  | The Michael Shermer Show | Michael Shermer | |
| 18 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 18 | 4 |  | CrowdScience | BBC World Service | |
| 19 | — |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 20 | 17 |  | Babbage from The Economist | The Economist | |
| 20 | 8 |  | Astrum Space | Astrum | |
| 20 | 5 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 20 | 36 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 21 | 17 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 24 | — |  | Bedtime Astronomy | Synthetic Universe | |
| 26 | — | T | The Land Before Podcast: Fossil Histories and Paleo Mysteries | Dinosaur Ridge | |
| 27 | 5 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 28 | 1 |  | The world, the universe and us | New Scientist | |
| 28 | 2 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 29 | 64 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 29 | — |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 30 | 13 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 30 | 16 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 30 | 16 | N | Naturefile | RTÉ lyric fm | |
| 30 | 14 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 32 | 10 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 32 | 5 |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 33 | — |  | New Books in Critical Theory | Marshall Poe | |
| 33 | 63 |  | The Psychology Podcast | iHeartPodcasts | |
| 34 | 28 |  | Leaked | TFLabs | |
| 34 | 48 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 34 | 10 |  | You Are Not So Smart | You Are Not So Smart | |
| 35 | — |  | Wonder | Brazen | |
| 36 | 33 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 36 | — | T | The Vet Pod | The Vet Pod | |
| 38 | 2 | N | New Scientist Weekly | New Scientist | |
| 39 | — |  | Human Origins - The Story of Us | World of Paleoanthropology | |
| 39 | — |  | Science and the City | Science and the City | |
| 40 | 22 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 40 | 5 |  | Mythfits | Pionaire Podcasting | |
| 40 | — |  | The Catholic Guide to Sustainable Living | Ave Maria University | |
| 41 | 19 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 41 | 10 | S | Space | BBC World Service | |
| 41 | — |  | Espacio en blanco | Radio Nacional | |
| 42 | 48 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 42 | 19 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 42 | — |  | Science unscripted | DW | |
| 43 | 5 |  | All In The Mind | ABC | |
| 43 | — |  | The Threshold | Foreign Policy | |
| 44 | 12 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 44 | — |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 44 | — |  | Horizonte – Iker Jiménez | Mediaset | |
| 45 | — | T | The NPC Podcast Presents - Next In Pharma: AI-Powered Analytics | Next in Pharma | |
| 45 | 20 | W | Wild Lives | Our Media | |
| 46 | — | A | aboutlogic | Deniz Sarikaya, Thorsten Altenkirch | |
| 46 | — | E | Endocrine Feedback Loop | Endocrine Society | |
| 47 | — | S | StarXiv: a podcast discussing the latest astronomy papers | Michelle and Payel | |
| 47 | — | T | The Naked Scientists Podcast | The Naked Scientists | |
| 48 | 8 | S | Sinapse | Ciência Todo Dia | |
| 51 | — | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 52 | 24 | T | Tweet of the Day | BBC Radio 4 | |
| 53 | — |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 53 | 23 |  | Somewhere in the Skies | SpectreVision Radio | |
| 55 | 11 |  | Ask a Spaceman! | Paul M. Sutter | |
| 55 | — | D | Down the Hatch - The Swallowing Podcast | Down the Hatch - The Swallowing Podcast | |
| 56 | — | S | Science Quickly | Scientific American | |
| 57 | — |  | Overheard at National Geographic | National Geographic | |
| 58 | — |  | Why Do We Do That? | BBC Radio 4 | |
| 59 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 59 | — | T | The Psychology of Criminal and Antisocial Behaviour | WP | |
| 61 | — |  | Discovery | BBC World Service | |
| 61 | 29 | T | Tetrapod Zoology Podcast - Tetrapod Zoology | John Conway & Darren Naish | |
| 62 | — | A | Agents Of Tech | WebsEdge | |
| 63 | 16 |  | Unexpected Elements | BBC World Service | |
| 63 | — | C | Chris Skinner's Countryside Podcast | SOUNDYARD | |
| 64 | 14 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 65 | — |  | Scotland Outdoors | BBC Radio Scotland | |
| 65 | 28 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 67 | 39 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 68 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 69 | — | I | In Your Nature | By BirdWatch Ireland | |
| 69 | 31 |  | A Question of Science | The Francis Crick Institute | |
| 70 | — | I | ImmunoTea: Your Immunology Podcast | Lara Dungan | |
| 71 | 34 |  | The Plodcast | Our Media | |
