| 1 | — |  | Unexplainable | Vox | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 4 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 5 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 1 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 8 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 9 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 10 | 41 |  | Discovery | BBC World Service | |
| 11 | 2 |  | BBC Inside Science | BBC Radio 4 | |
| 12 | 1 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 13 | 53 | L | Let's Talk Micro | Luis Plaza | |
| 14 | 3 |  | More or Less | BBC Radio 4 | |
| 15 | 1 |  | Science Vs | Spotify Studios | |
| 16 | 4 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 17 | — | T | The Cosmic Savannah | The Cosmic Savannah | |
| 18 | 115 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 19 | 43 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 20 | 9 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 21 | 29 |  | Living Planet | DW | |
| 22 | 68 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 23 | 6 |  | Curious Cases | BBC Radio 4 | |
| 24 | 1 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 25 | 59 |  | Speaking of Psychology | American Psychological Association | |
| 26 | 11 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 27 | 128 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 28 | 165 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 29 | 83 |  | The Climate Question | BBC World Service | |
| 30 | 14 |  | Short Wave | NPR | |
| 31 | 83 |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 32 | 103 | T | The We Society | AcSS | |
| 33 | — |  | The Energy Podcast | Shell | |
| 34 | — | B | BJA Education Podcasts | BJA Education | |
| 35 | — |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 36 | 72 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 37 | — | G | Groundwater Rising | Project Groundwater | |
| 38 | — | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 39 | 134 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 40 | — |  | The Common Descent Podcast | Common Descent | |
| 41 | 20 |  | CrowdScience | BBC World Service | |
| 42 | — |  | Agriscience Explained | Corteva Agriscience | |
| 43 | 9 |  | Overheard at National Geographic | National Geographic | |
| 44 | — | B | Building a Science of Consciousness | Qualia Research Institute | |
| 45 | — | B | Biofuels Daily | Scott Singer | |
| 46 | 14 |  | The Orthobullets Podcast | Orthobullets | |
| 47 | 28 |  | This Week in Cardiology | Medscape | |
| 48 | 30 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 49 | 16 |  | All In The Mind | ABC | |
| 50 | 30 |  | The Psychology Podcast | iHeartPodcasts | |
| 51 | 21 |  | This Week in Virology | Vincent Racaniello | |
| 52 | 30 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 53 | — |  | Ask the Naked Scientists | Dr Chris Smith | |
| 54 | 31 |  | The Future of Everything | Stanford Engineering | |
| 55 | 24 |  | The Life Scientific | BBC Radio 4 | |
| 56 | — |  | Shark Week: The Podcast | Discovery | |
| 57 | 20 |  | You Are Not So Smart | You Are Not So Smart | |
| 58 | 34 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 59 | 31 |  | The Science of Everything Podcast | James Fodor | |
| 60 | 33 |  | The Market Gardener Podcast | JM Fortier | |
| 61 | 35 | P | Pearls of Exxcellence | The Society for Academic Specialists in General Obstetrics and Gynecology | |
| 62 | 24 |  | Unexpected Elements | BBC World Service | |
| 63 | 23 |  | This Week in Microbiology | Vincent Racaniello | |
| 64 | 16 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 65 | 29 | T | The Art of Range | Tip Hudson | |
| 66 | 11 | S | Students of Surgery | Martin Brand | |
| 67 | 28 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 68 | 33 | C | Chasing Consciousness | Freddy Drabble | |
| 69 | 28 |  | Clinical Chemistry Podcast | Association for Diagnostics and Laboratory Medicine | |
| 70 | 28 | T | The Cancer Researcher Podcast | The European Association for Cancer Research (EACR) | |
| 71 | 28 |  | Nature Insight: Speed Dating with the Future | IPBES | |
| 72 | 28 |  | Mongabay Newscast | Mongabay.com | |
| 73 | 28 |  | Planet Visionaries – SEASON 5 | A podcast in partnership with The Rolex Perpetual Planet Initiative | |
| 74 | 28 | E | Eye Basics 101 - Ophthalmology and Optometry Review | Eye Basics 101 - Ophthalmology and Optometry Review | |
| 75 | 28 | S | Song and Plants | Carmen Porter | |
| 76 | 7 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 77 | 39 |  | Science Friday | Science Friday and WNYC Studios | |
| 78 | 22 |  | The Confessionals | Merkel Media | |
| 79 | 10 | ![Cosmosis [Formerly The UFO Rabbit Hole]](https://is1-ssl.mzstatic.com/image/thumb/Podcasts211/v4/6e/50/4f/6e504f3a-5967-0f9a-1858-77a5f070b7d4/mza_10360255510263335732.jpeg/100x100bb.jpg) | Cosmosis [Formerly The UFO Rabbit Hole] | Kelly Chase & Jay Christopher King | |
| 80 | 31 |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 81 | — |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 82 | 30 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 83 | 20 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 84 | 25 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 85 | 71 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 86 | 28 |  | Science Weekly | The Guardian | |
| 87 | — |  | Drilled | Pushkin Industries | |
| 88 | 28 |  | Science In Action | BBC World Service | |
| 89 | 28 |  | How We're Wired | The Bertarelli Foundation | |
| 90 | 1 |  | Blurry Creatures | Blurry Creatures | |
| 91 | 27 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 92 | 45 |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 93 | 36 |  | Bedtime Astronomy | Synthetic Universe | |
| 94 | 29 |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 95 | — |  | Regenerative Agriculture Podcast | John Kempf | |
| 96 | 21 |  | Mysterious Universe | 8th Kind | |
| 97 | 25 |  | Why Do We Do That? | BBC Radio 4 | |
| 98 | 31 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 99 | 29 | T | The Human Risk Podcast | Human Risk | |
| 100 | 1 |  | In Defense of Plants Podcast | In Defense of Plants | |
