| 1 | 7 |  | Science Weekly | The Guardian | |
| 2 | 3 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | — |  | Curious Cases | BBC Radio 4 | |
| 5 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 7 | 6 |  | Radiolab | WNYC Studios | |
| 8 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | 3 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 10 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 11 | 4 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 12 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 13 | 7 |  | More or Less | BBC Radio 4 | |
| 14 | 1 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 15 | 1 | W | Why? with Emma Kennedy | Podmasters | |
| 16 | 36 |  | Speed & Scale | TED | |
| 17 | 8 |  | Ologies with Alie Ward | Alie Ward | |
| 18 | 17 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 19 | 5 |  | The Psychology Podcast | iHeartPodcasts | |
| 20 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 21 | 2 |  | Discovery | BBC World Service | |
| 22 | 168 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 23 | 1 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 24 | 7 |  | A Life More Wild | Canopy & Stars | |
| 25 | 50 |  | Science Vs | Spotify Studios | |
| 26 | 55 |  | Tiny Matters | Multitude | |
| 27 | 86 |  | The Climate Question | BBC World Service | |
| 28 | 92 | N | New Scientist Weekly | New Scientist | |
| 29 | 148 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 30 | 7 | T | The GOSH Paediatrics Bioethics Podcast | GOSH Learning Academy | |
| 31 | 7 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 32 | 11 |  | That UFO Podcast | That UFO Podcast | |
| 33 | 3 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 34 | — |  | Accidental Gods | Accidental Gods | |
| 35 | — |  | Expanded Perspectives | Expanded Perspectives | |
| 36 | 11 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 37 | 19 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 38 | 143 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 39 | 11 |  | Speaking of Psychology | American Psychological Association | |
| 40 | — |  | Safety Third | Safety Third | |
| 41 | — |  | The Beef Podcast Show | Wisenetix | |
| 42 | — |  | La Science, CQFD | France Culture | |
| 43 | 14 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 44 | — | S | Sarcoma Insight Podcast | Sarcoma Insight Podcast | |
| 45 | — |  | Invisibilia | NPR | |
| 46 | — |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 47 | — | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 48 | — | T | The Immaculate Deception | Somethin' Else / Sony Music Entertainment | |
| 49 | — | F | Fundamentals of Physics, II - Audio | Ramamurti Shankar | |
| 50 | — | T | Thirst Gap: Learning to Live with Less on the Colorado River | KUNC | |
| 51 | — | C | Climate Break | Berkeley Law | |
| 52 | 21 |  | The world, the universe and us | New Scientist | |
| 53 | 10 |  | The Plodcast | Our Media | |
| 54 | 21 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 55 | 23 |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 56 | 24 |  | The Michael Shermer Show | Michael Shermer | |
| 57 | 16 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 58 | 32 | C | CountryWide | RTÉ Radio 1 | |
| 59 | 21 |  | You Are Not So Smart | You Are Not So Smart | |
| 60 | 26 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 61 | 10 |  | Cool Worlds Podcast | coolworldslab | |
| 62 | 25 | I | In Your Nature | By BirdWatch Ireland | |
| 63 | 44 |  | Science Friday | Science Friday and WNYC Studios | |
| 64 | 44 |  | Universe Today Podcast | Fraser Cain | |
| 65 | 26 |  | The New Quantum Era - innovation in quantum computing, science and technology | Sebastian Hassinger | |
| 66 | 17 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 67 | 1 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 68 | 23 |  | SciShow Tangents | Complexly | |
| 69 | 29 | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 70 | 34 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 71 | 35 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 72 | 24 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 73 | 29 | F | Feet on the Soil | Soil Boy | |
| 74 | 27 |  | Manifold | Steve Hsu | |
| 75 | 25 | C | Conservation and Science | Tommy's Outdoors | |
| 76 | 30 |  | Rare Earth | BBC Radio 4 | |
| 77 | 35 | S | Sound Healing / Sound Bath | Omandala Vietnam | |
| 78 | 20 | U | Unravelling Science Podcast | Dr Megan Hanlon | |
| 79 | 17 | P | Pharmakon | Francesca De Ruvo, Ruggero Rollini, Andrea Tavernaro, Francesca Zavino | |
| 80 | 27 | A | Accessible Astrology Podcast with Eugenia Krok, MA | Accessible Astrology - Eugenia Krok, MA | |
| 81 | 26 |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 82 | 26 |  | Brain Inspired | Paul Middlebrooks | |
| 83 | 26 |  | Living Planet | DW | |
| 84 | 25 |  | NRC Onbehaarde Apen | NRC | |
| 85 | 25 | M | Many Minds | Kensy Cooperrider – Diverse Intelligences Summer Institute | |
| 86 | 25 | C | Climate Change for Beginners | Dr. Ciaran O'Carroll | |
| 87 | 17 | ' | 'Mind the Kids': an ACAMH podcast | The Association for Child and Adolescent Mental Health | |
| 88 | 8 |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 89 | 62 |  | Infectious Disease Puscast | Vincent Racaniello | |
| 90 | 22 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 91 | 12 |  | Podcast UFO | Martin Willis | |
| 92 | 28 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 93 | 22 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 94 | 29 |  | Overheard at National Geographic | National Geographic | |
| 95 | 23 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 96 | 19 | T | The Signpost Series | Teagasc | |
| 97 | 43 |  | Science In Action | BBC World Service | |
| 98 | 13 |  | The Science of Everything Podcast | James Fodor | |
| 99 | 51 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 100 | 27 |  | Let's Learn Everything! | Maximum Fun | |
