| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 1 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | — |  | The Rest Is Science | Goalhanger | |
| 4 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | — |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 2 |  | Radiolab | WNYC Studios | |
| 7 | 1 |  | Unexplainable | Vox | |
| 9 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 10 | 1 |  | Science Vs | Spotify Studios | |
| 10 | 4 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 10 | 1 |  | Science Weekly | The Guardian | |
| 10 | 1 |  | Curious Cases | BBC Radio 4 | |
| 12 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 12 | 5 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 15 | 3 | B | Boring History for Sleep | Velvet | |
| 15 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 2 |  | The Psychology Podcast | iHeartPodcasts | |
| 16 | 6 |  | The Life Scientific | BBC Radio 4 | |
| 18 | 3 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 19 | 5 |  | Discovery | BBC World Service | |
| 19 | 4 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 21 | — |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 21 | — | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 22 | 2 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 23 | 3 |  | More or Less | BBC Radio 4 | |
| 23 | 1 |  | Blurry Creatures | Blurry Creatures | |
| 23 | 100 |  | Babbage from The Economist | The Economist | |
| 23 | 4 |  | Science Friday | Science Friday and WNYC Studios | |
| 24 | 49 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 26 | 9 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 27 | 63 |  | Nature Podcast | Springer Nature Limited | |
| 27 | — |  | Science In Action | BBC World Service | |
| 28 | 31 |  | The Michael Shermer Show | Michael Shermer | |
| 29 | 28 |  | BrainStuff | iHeartPodcasts | |
| 29 | 27 | W | Wildest Kruger Stories | Karolina Norée | |
| 29 | 4 |  | TheThinkingAtheist | The Thinking Atheist | |
| 30 | — |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 30 | 3 |  | A Question of Science | The Francis Crick Institute | |
| 31 | 3 |  | The world, the universe and us | New Scientist | |
| 32 | 16 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 32 | — | N | NASA Daily | ElectraCast Media LLC | |
| 33 | 140 | T | The Structural Engineering Podcast | Max and Zach | |
| 33 | — |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 34 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 34 | 7 |  | Universe Today Podcast | Fraser Cain | |
| 35 | 4 |  | UFO Witnesses | UFO Witnesses | |
| 36 | 8 |  | The Episodic Table of Elements | T. R. Appleton | |
| 36 | — | G | Green Noise | CapeNature | |
| 36 | 4 | Y | Your Family's Health | 90.3 WHPC | |
| 37 | — | F | Faith and Science | 3ABN Australia Radio | |
| 37 | — | L | Lifeworlds | Alexa Firmenich | |
| 38 | 3 |  | CrowdScience | BBC World Service | |
| 39 | 10 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 40 | 12 |  | BBC Inside Science | BBC Radio 4 | |
| 41 | 8 |  | COMPLEXITY | Santa Fe Institute | |
| 41 | 105 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 42 | 6 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 42 | — |  | Species | mackenmurphy.org | |
| 43 | — |  | The Deep End Pool Podcast | The Deep End | |
| 43 | — | T | The Pet Food Science Podcast Show | Wisenetix | |
| 44 | 17 |  | Planet Em | Emily McDonald | |
| 44 | — | P | Personality Psychology Podcast | personalitypsychologypodcast | |
| 45 | 6 |  | Expanded Perspectives | Expanded Perspectives | |
| 46 | — |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 47 | 9 |  | Paranormal Portal | Brent Thomas | |
| 47 | — | M | Making Science with Tom Whipple | The Times | |
| 49 | 23 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 49 | 12 | S | Science + God with Dr. G | AccessMore | |
| 50 | 15 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 51 | 17 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 52 | 13 |  | Weird & Dead | Amy Atwater and Meaghan Wetherell | |
| 53 | 10 | P | Presentations | Westmead Anaesthesia | Unknown | |
| 54 | 14 |  | Plant The Trees | Harry Greene | |
| 55 | — | C | Chercheur.es | Chercheur.es Podcast | |
| 55 | 11 |  | You Are Not So Smart | You Are Not So Smart | |
| 56 | 13 | L | LTP Podcast | LTP | |
| 57 | — |  | Ask the Naked Scientists | Dr Chris Smith | |
| 57 | — | P | POP: Public Opinion Podcast | American Association for Public Opinion Research | |
| 57 | — | T | The Soil Health Hub Podcast | Soil Health Hub | |
| 58 | — | T | The Ecoflix Podcasts | Ecoflix | |
| 59 | — |  | ACM ByteCast | Association for Computing Machinery (ACM) | |
| 62 | 27 |  | Short Wave | NPR | |
| 63 | — |  | The Micah Hanks Program | Micah Hanks | |
| 64 | 41 |  | Pri-Med Podcasts | Pri-Med | |
| 66 | 19 |  | The Science of Birds | Ivan Phillipsen | |
| 66 | — |  | LearningRadiology Video Podcasts | William Herring, MD, FACR | |
| 67 | 14 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 68 | 15 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 69 | 39 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 70 | 42 | T | TSRA Podcast | TSRA | |
| 71 | 35 |  | MinuteEarth | Minute Earth | |
| 73 | 66 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 73 | 32 |  | From First Principles | Krishna Choudhary and Lester Nare | |
| 74 | 34 |  | Scotland Outdoors | BBC Radio Scotland | |
| 75 | 36 |  | Drilled | Pushkin Industries | |
| 76 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 78 | 22 |  | This Week in Cardiology | Medscape | |
| 79 | 36 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 79 | — |  | Brave New World | Evening Standard | |
