| 1 | 15 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 74 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 58 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 4 | 94 |  | Curious Cases | BBC Radio 4 | |
| 5 | — | T | The Animal Sensemaker | Tortoise Media | |
| 6 | — |  | Main Engine Cut Off | Anthony Colangelo | |
| 7 | 6 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 8 | 6 |  | Radiolab | WNYC Studios | |
| 9 | 4 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 10 | 6 |  | Unexpected Elements | BBC World Service | |
| 11 | 8 |  | Science Vs | Spotify Studios | |
| 12 | 6 |  | Somewhere in the Skies | SpectreVision Radio | |
| 13 | 6 |  | Making Sense with Sam Harris | Sam Harris | |
| 14 | 6 |  | Accidental Gods | Accidental Gods | |
| 15 | 6 |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 16 | 6 |  | پادکست آذرخش مکری - azarakhsh mokri | nimac | |
| 17 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 18 | 6 |  | American Innovations | Wondery | |
| 19 | 6 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 20 | 6 |  | New Books in Critical Theory | Marshall Poe | |
| 21 | 6 |  | The Environmental Transformation Podcast with Sean Grady | Sean Grady | |
| 22 | 5 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 23 | 5 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 24 | 3 |  | Science Weekly | The Guardian | |
| 25 | 45 |  | Unexplainable | Vox | |
| 26 | — |  | The Eco Well podcast | Jen@theecowell | |
| 27 | 13 |  | The Science Show | ABC | |
| 28 | 6 |  | The Micah Hanks Program | Micah Hanks | |
| 29 | 27 |  | More or Less | BBC Radio 4 | |
| 30 | — | S | Sternzeit | Deutschlandfunk | |
| 31 | — | S | Stimulating Brains | Andreas Horn | |
| 32 | 10 |  | TOP TO TOE | THE STANDARD | |
| 33 | 29 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 34 | 15 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 35 | 15 |  | Overheard at National Geographic | National Geographic | |
| 36 | 1 |  | Short Wave | NPR | |
| 37 | 5 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 38 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 39 | 12 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 40 | 100 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 41 | — |  | The House of Pod | Kaveh MD | |
| 42 | — |  | Countercurrent: conversations with Professor Roger Kneebone | Professor Roger Kneebone | |
| 43 | 6 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 44 | 20 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 45 | — |  | Need To Know | Bryce Zabel | |
| 46 | 23 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 47 | 83 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 48 | — | N | Nurtured by Nature | Fiona MacKay | |
| 49 | — |  | For What It’s Earth | Emma Brisdion & Sophie Pavelle | |
| 50 | 43 | D | Dagbók Urriða | Ólafur Guðbjartsson | |
| 51 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 52 | 16 |  | Invisibilia | NPR | |
| 53 | 10 |  | Science Friday | Science Friday and WNYC Studios | |
| 54 | 29 |  | Astrum Space | Astrum | |
| 55 | — | T | The Bearded Tit‘s Podcast | Jack Perks | |
| 56 | 30 | N | Naked Scientists, In Short Special Editions Podcast | The Naked Scientists | |
| 57 | 29 |  | Big Picture Science | Big Picture Science | |
| 58 | 95 |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 59 | 99 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 60 | 100 |  | Radiowissen | Bayerischer Rundfunk | |
| 61 | — |  | Science Quickly | Scientific American | |
| 62 | — | E | Economics In Ten | Economics In Ten | |
| 63 | — |  | Science Friction | ABC | |
| 64 | 35 | 2 | 24/7 | Beggi Ólafs | |
| 65 | 2 |  | Cool Worlds Podcast | coolworldslab | |
| 66 | 36 |  | The Michael Shermer Show | Michael Shermer | |
| 67 | 20 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 68 | 37 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 69 | 36 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 70 | 36 |  | This Week in Virology | Vincent Racaniello | |
| 71 | 36 |  | CrowdScience | BBC World Service | |
| 72 | 29 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 73 | 29 | F | Farming Today | BBC Radio 4 | |
| 74 | 48 |  | The world, the universe and us | New Scientist | |
| 75 | — | W | Weekend Birder | Kirsty Costa | |
| 76 | 40 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 77 | 38 |  | The Couples Therapist Couch | Shane Birkel | |
| 78 | 37 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 79 | — |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 80 | 36 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 81 | 35 |  | The 365 Days of Astronomy | 365DaysOfAstronomy.org | |
| 82 | 31 |  | The Life Scientific | BBC Radio 4 | |
| 83 | 26 |  | Psychedelics Today | Psychedelics Today | |
| 84 | 36 | T | The DemystifySci Podcast | DemystifySci | |
| 85 | 35 |  | Nature Podcast | Springer Nature Limited | |
| 86 | 55 | G | Game Theory | Game Theory | |
| 87 | 34 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 88 | 34 |  | Dumma Människor | Acast - Lina Thomsgård och Björn Hedensjö | |
| 89 | 34 |  | Podcast UFO | Martin Willis | |
| 90 | 57 |  | Skeptoid | Brian Dunning | |
| 91 | 34 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 92 | 34 | P | Post Truth be told | RECLAIM | |
| 93 | 27 |  | Science In Action | BBC World Service | |
| 94 | 35 | T | The Dissenter | Ricardo Lopes | |
| 95 | 35 | W | Waterlands | Wildfowl & Wetlands Trust | |
| 96 | — |  | EverydaySpy Podcast | Andrew Bustamante | |
| 97 | 33 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 98 | — |  | Stanford Psychology Podcast | Stanford Psychology | |
| 99 | 34 | D | Daily FLOW | Manuel del Valle | |
| 100 | 25 |  | The Supermassive Podcast | The Royal Astronomical Society | |
