| 1 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 5 |  | Radiolab | WNYC Studios | |
| 3 | 96 |  | BBC Inside Science | BBC Radio 4 | |
| 4 | 60 |  | American Innovations | Wondery | |
| 5 | 3 |  | New Books in Critical Theory | Marshall Poe | |
| 6 | 3 |  | The Environmental Transformation Podcast with Sean Grady | Sean Grady | |
| 7 | 3 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 8 | — |  | The Michael Shermer Show | Michael Shermer | |
| 9 | 4 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 10 | 4 |  | Overheard at National Geographic | National Geographic | |
| 11 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 12 | 2 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 13 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 14 | 1 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 15 | 3 |  | Somewhere in the Skies | SpectreVision Radio | |
| 16 | 52 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 17 | 3 |  | You Are Not So Smart | You Are Not So Smart | |
| 18 | 94 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 19 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 20 | 40 |  | Ologies with Alie Ward | Alie Ward | |
| 21 | 3 |  | Science Weekly | The Guardian | |
| 22 | 5 |  | CrowdScience | BBC World Service | |
| 23 | 2 |  | The Life Scientific | BBC Radio 4 | |
| 24 | 4 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 25 | 25 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 26 | 12 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 27 | 1 |  | Science Vs | Spotify Studios | |
| 28 | 13 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 29 | 99 |  | This Week in Virology | Vincent Racaniello | |
| 30 | 100 |  | The Science of Birds | Ivan Phillipsen | |
| 31 | 102 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 32 | 21 |  | Dumma Människor | Acast - Lina Thomsgård och Björn Hedensjö | |
| 33 | 37 |  | Nature Podcast | Springer Nature Limited | |
| 34 | 53 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 35 | 17 |  | All In The Mind | ABC | |
| 36 | 163 |  | Origin Stories | The Leakey Foundation | |
| 37 | — |  | Why Do We Do That? | BBC Radio 4 | |
| 38 | 127 |  | Dr Karl Podcast | triplej | |
| 39 | 8 |  | Curious Cases | BBC Radio 4 | |
| 40 | 10 | C | Climate Connections | Yale Center for Environmental Communication | |
| 41 | 22 |  | Mysterious Universe | 8th Kind | |
| 42 | 3 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 43 | 35 |  | Psychedelics Today | Psychedelics Today | |
| 44 | 4 |  | Speed & Scale | TED | |
| 45 | 4 | S | Sustainability Leaders Series | Yale Center for Business and the Environment | |
| 46 | 36 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 47 | — | D | Dagbók Urriða | Ólafur Guðbjartsson | |
| 48 | — |  | Ask the Naked Scientists | Dr Chris Smith | |
| 49 | — |  | Das Wissen | SWR | SWR | |
| 50 | 28 |  | Discovery | BBC World Service | |
| 51 | 28 |  | Science Friday | Science Friday and WNYC Studios | |
| 52 | 25 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 53 | 28 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 54 | 9 |  | The Psychology Podcast | iHeartPodcasts | |
| 55 | 98 |  | UFO Chronicles Podcast | Nik Hunter | |
| 56 | 28 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 57 | 6 | P | PRIO's Peace in a Pod | Peace Research Institute Oslo | |
| 58 | 6 | S | Simplifying Complexity | Sean Brady from Brady Heywood | |
| 59 | — |  | TOP TO TOE | THE STANDARD | |
| 60 | 29 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 61 | 32 |  | Unexpected Elements | BBC World Service | |
| 62 | 30 |  | The Micah Hanks Program | Micah Hanks | |
| 63 | 30 | T | The We Society | AcSS | |
| 64 | 30 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 65 | 30 |  | RumSnak | Tina Ibsen + Anders Høeg Nissen | |
| 66 | 30 |  | La Science, CQFD | France Culture | |
| 67 | 17 | 2 | 24/7 | Beggi Ólafs | |
| 68 | 7 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 69 | 27 | F | Farming Today | BBC Radio 4 | |
| 70 | 27 |  | Better Brain Fitness (a Brainjo Production) | Josh Turknett, MD | |
| 71 | 27 |  | The world, the universe and us | New Scientist | |
| 72 | 30 |  | MCHD Paramedic Podcast | Montgomery County Hospital District | |
| 73 | 18 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 74 | 28 |  | Unexplainable | Vox | |
| 75 | 21 |  | Safety Third | Safety Third | |
| 76 | 41 |  | Nerdland Podcast | Lieven Scheire | |
| 77 | 30 |  | Physics World Weekly Podcast | Physics World | |
| 78 | 64 |  | Total Disclosure Podcast | Tyler Roberts | |
| 79 | 65 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 80 | 15 |  | Speaking of Psychology | American Psychological Association | |
| 81 | 25 |  | Radio Naukowe | Radio Naukowe - Karolina Głowacka | |
| 82 | 25 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 83 | 25 |  | Cool Worlds Podcast | coolworldslab | |
| 84 | 2 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 85 | 37 |  | Science In Action | BBC World Service | |
| 86 | 24 |  | Podcast UFO | Martin Willis | |
| 87 | 24 | L | La Suite dans les idées | France Culture | |
| 88 | 16 |  | دارما کلینیک | Dharma Clinic | Dharma Team | |
| 89 | 23 |  | World’s Wildest: Tales of Earth’s Most Extreme Creatures | Maya Higa & Connor O'Brien | |
| 90 | 23 | N | Nauka To Lubię | Tomasz Rożek | |
| 91 | 12 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 92 | 23 |  | Off-Nominal | Jake Robins, Anthony Colangelo | |
| 93 | 22 |  | The Plodcast | Our Media | |
| 94 | 21 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 95 | 21 | S | Skogkurs-podden | Skogkurs | |
| 96 | 21 |  | Invisibilia | NPR | |
| 97 | 21 | I | Intertek's Assurance in Action Podcast Network | Intertek | |
| 98 | 21 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 99 | 20 | G | Game Theory | Game Theory | |
| 100 | 20 | P | Perspektiv - allmänbildning du har nytta av. | Vad Vi Vet. | |
