| 1 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 1 | — |  | Ologies with Alie Ward | Alie Ward | |
| 2 | 7 |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 1 |  | Radiolab | WNYC Studios | |
| 3 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | 2 |  | Unexplainable | Vox | |
| 4 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 7 | — |  | The Rest Is Science | Goalhanger | |
| 7 | — |  | Curious Cases | BBC Radio 4 | |
| 8 | 1 |  | Science Vs | Spotify Studios | |
| 8 | 4 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 10 | — |  | Science Weekly | The Guardian | |
| 11 | 2 | B | Boring History for Sleep | Velvet | |
| 11 | 1 | S | Students of Surgery | Martin Brand | |
| 12 | 6 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 14 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 14 | 138 |  | Breaking Math Podcast | Autumn Phaneuf & Noah Giansiracusa | |
| 15 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 15 | 4 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 16 | 3 |  | More or Less | BBC Radio 4 | |
| 16 | 2 |  | Blurry Creatures | Blurry Creatures | |
| 16 | 7 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 17 | — |  | Ask the Naked Scientists | Dr Chris Smith | |
| 19 | 1 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 20 | 1 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 21 | 15 |  | Discovery | BBC World Service | |
| 21 | 4 |  | The Michael Shermer Show | Michael Shermer | |
| 22 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 23 | 5 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 23 | — |  | Planet Em | Emily McDonald | |
| 24 | 7 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 24 | 6 |  | Unexpected Elements | BBC World Service | |
| 24 | 5 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 25 | 2 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 25 | 4 |  | The Psychology Podcast | iHeartPodcasts | |
| 26 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 28 | 24 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 28 | 11 |  | Let's Learn Everything! | Maximum Fun | |
| 29 | 45 |  | How We're Wired | The Bertarelli Foundation | |
| 30 | 4 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 33 | 9 |  | BBC Inside Science | BBC Radio 4 | |
| 33 | 14 |  | CrowdScience | BBC World Service | |
| 33 | 58 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 33 | 84 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 33 | 10 |  | TheThinkingAtheist | The Thinking Atheist | |
| 34 | 5 |  | Regenerative Agriculture Podcast | John Kempf | |
| 35 | 11 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 35 | 6 |  | New Books in Critical Theory | Marshall Poe | |
| 36 | 5 |  | Geology Bites | Oliver Strimpel | |
| 37 | 15 |  | All In The Mind | ABC | |
| 37 | 13 |  | Science Friday | Science Friday and WNYC Studios | |
| 38 | 5 |  | The Global Energy & Environmental Law Podcast | The International Environmental Law Committee of the American Branch of the International Law Association | |
| 39 | 1 |  | You Are Not So Smart | You Are Not So Smart | |
| 41 | 7 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 42 | 17 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 42 | 15 |  | A Question of Science | The Francis Crick Institute | |
| 43 | 13 |  | Nature Podcast | Springer Nature Limited | |
| 45 | — | U | Unlocking Behaviour Change | Robert West | |
| 45 | 3 |  | This Week in Cardiology | Medscape | |
| 46 | 1 |  | Short Wave | NPR | |
| 46 | 14 |  | The world, the universe and us | New Scientist | |
| 46 | 6 | T | The Deep-Sea Podcast | Thomas Linley | |
| 48 | — |  | Das Wissen | SWR | SWR | |
| 48 | 69 |  | That UFO Podcast | That UFO Podcast | |
| 48 | — |  | Skeptoid | Brian Dunning | |
| 51 | 3 |  | BrainStuff | iHeartPodcasts | |
| 51 | 54 |  | In Pursuit of Development | Dan Banik | |
| 51 | 17 |  | SUBSTANCE | BASF | |
| 52 | 9 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 53 | 3 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 53 | 13 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 53 | 3 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 54 | 5 |  | Naturebang | BBC Radio 4 | |
| 54 | 53 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 56 | 44 | W | Wildest Kruger Stories | Karolina Norée | |
| 57 | 121 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 57 | — |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 58 | 99 |  | Skeptics with a K | Skeptic Media Limited | |
| 58 | 9 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 58 | — | T | The Biotech Startups Podcast | Excedr | |
| 59 | 11 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 61 | — | N | Not So Random Facts | Storyteller Entertainment | |
| 62 | — |  | Deep Insights with Mining Review Africa | Mining Review Africa | |
| 62 | — | I | Into the Okavango | Okavango15 Expedition Team | |
| 63 | 76 |  | Intelligent Design the Future | Discovery Institute | |
| 64 | 17 | A | Ask the Naked Scientists | Dr Chris Smith | |
| 65 | — |  | The Climate Question | BBC World Service | |
| 67 | 10 | E | EADV Podcast | EADV | |
| 68 | 25 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 69 | 24 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 70 | 11 | F | Fire Science Show | Wojciech Wegrzynski | |
| 70 | — |  | On Humans | Ilari Mäkelä | |
| 71 | 13 |  | Win-Win with Liv Boeree | Liv Boeree | |
| 71 | 1 | T | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 71 | 22 |  | The Quanta Podcast | Quanta Magazine | |
| 72 | 6 |  | Planet Visionaries – SEASON 5 | A podcast in partnership with The Rolex Perpetual Planet Initiative | |
| 72 | 12 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 73 | — | B | Broomedocs POdcast | Dr Casey Parker | |
| 73 | 20 | B | Between the Lines | Institute of Development Studies | |
| 74 | 51 | R | Rain and Thunder Storms Podcast | Natural Podcasts | |
