| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 1 | — |  | Ologies with Alie Ward | Alie Ward | |
| 1 | 1 |  | Radiolab | WNYC Studios | |
| 3 | 5 |  | Shocked | UChicago Institute for Climate and Sustainable Growth, Michael Greenstone, Amy Harder | |
| 3 | 5 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | — |  | Science Weekly | The Guardian | |
| 5 | 2 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 6 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 7 | 3 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 9 | 6 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 10 | 5 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 11 | 2 |  | More or Less | BBC Radio 4 | |
| 11 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 12 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 13 | 3 |  | The world, the universe and us | New Scientist | |
| 14 | 9 | B | Boring History for Sleep | Velvet | |
| 16 | 1 |  | Discovery | BBC World Service | |
| 16 | 12 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 16 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 17 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 17 | 5 |  | Where The Wild Thoughts Are | Jo Marchant | |
| 18 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 18 | — |  | Science Vs | Spotify Studios | |
| 19 | 10 |  | The Life Scientific | BBC Radio 4 | |
| 19 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 22 | 31 | I | In Your Nature | By BirdWatch Ireland | |
| 22 | 39 |  | The Michael Shermer Show | Michael Shermer | |
| 22 | — |  | Babbage from The Economist | The Economist | |
| 23 | 7 |  | CrowdScience | BBC World Service | |
| 23 | 7 |  | A Question of Science | The Francis Crick Institute | |
| 23 | 115 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 24 | 11 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 24 | 1 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 24 | 9 | E | Everything's Psychology | Paul Davies | |
| 24 | 75 |  | Naturebang | BBC Radio 4 | |
| 25 | 11 | C | CountryWide | RTÉ Radio 1 | |
| 26 | 9 |  | Scotland Outdoors | BBC Radio Scotland | |
| 28 | 6 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 28 | 4 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 29 | 7 |  | Mysterious Universe | 8th Kind | |
| 30 | 36 |  | Universe Today Podcast | Fraser Cain | |
| 31 | 2 |  | Unexplainable | Vox | |
| 32 | 1 |  | Science In Action | BBC World Service | |
| 32 | 11 |  | Astrum Space | Astrum | |
| 32 | 2 |  | All In The Mind | ABC | |
| 33 | — |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 33 | 89 |  | This Week in Cardiology | Medscape | |
| 34 | — |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 35 | — | 2 | 28 Ways to Save the World | Newstalk | |
| 37 | 11 |  | Oceanography | Pine Forest Media | |
| 37 | — |  | Robinson's Podcast | Robinson Erhardt | |
| 39 | 13 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 39 | 74 |  | Overheard at National Geographic | National Geographic | |
| 40 | — |  | ACM ByteCast | Association for Computing Machinery (ACM) | |
| 40 | 2 |  | Ask a Spaceman! | Paul M. Sutter | |
| 40 | — |  | Overshoot: Navigating a world beyond 1.5°C | Planet B Productions | |
| 42 | — | T | The PJ Pod | Pharmaceutical Journal | |
| 42 | — | D | Durchblick – der tägliche Wissenschaftspodcast | Blick – Sina Albisetti & Fabio Schmid | |
| 44 | 1 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 44 | 10 |  | Speaking of Psychology | American Psychological Association | |
| 45 | — |  | Kohn's Zone | Alfie Kohn | |
| 46 | — | P | Pharmacy Microteaches | Dave Abbott | |
| 46 | 16 | S | Sweet Little Human | Orkan Media | |
| 47 | 15 |  | Origin Stories | The Leakey Foundation | |
| 48 | — | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 48 | 6 |  | Need To Know | Bryce Zabel | |
| 48 | — |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 48 | — | M | Maths on the Move | plus.maths.org | |
| 49 | 20 | T | The Met Éireann Podcast | Met Éireann | |
| 50 | 9 |  | Science Magazine Podcast | Science Magazine | |
| 51 | 13 |  | Unexpected Elements | BBC World Service | |
| 51 | 45 |  | That UFO Podcast | That UFO Podcast | |
| 52 | 19 |  | Re:Energise from ESB | ESB | |
| 53 | 8 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 54 | — | T | TTS Talks | To The Stars Inc. | |
| 55 | 10 | M | Making Science with Tom Whipple | The Times | |
| 56 | 10 | T | The Royal College of Psychiatrists Podcast | RCPsych | |
| 58 | — | T | The Aspiring Psychologist Podcast | Dr Marianne Trent | |
| 58 | — |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 59 | 93 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 59 | — | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 60 | 14 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 60 | 18 | S | Space | BBC World Service | |
| 61 | 10 | F | Farming Today | BBC Radio 4 | |
| 61 | — |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 62 | 18 |  | The Astrophysics Podcast | Paul Duffell | |
| 63 | — |  | Altered States | PRX | |
| 63 | 29 |  | Instant Genius | Our Media | |
| 64 | 21 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 64 | — |  | Discovery to Recovery | Society of Economic Geologists | |
| 65 | — |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 66 | 15 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 67 | 2 |  | Science Friday | Science Friday and WNYC Studios | |
| 68 | — |  | Bright Horse & Hound | Barbara J. Hardman | |
| 68 | 18 |  | New Books in Critical Theory | Marshall Poe | |
| 69 | — | F | Fresh Thinking by Snowden Optiro | Snowden Optiro | |
| 69 | 9 |  | Breaking Math Podcast | Autumn Phaneuf & Noah Giansiracusa | |
| 71 | 12 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 72 | 26 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 73 | 23 | E | Elements | BBC World Service | |
