| 1 | 1 |  | Curious Cases | BBC Radio 4 | |
| 2 | 5 |  | More or Less | BBC Radio 4 | |
| 3 | 8 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 4 | 1 |  | Radiolab | WNYC Studios | |
| 5 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 6 | 38 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 7 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 2 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 9 | 6 |  | Unexplainable | Vox | |
| 10 | 1 |  | CrowdScience | BBC World Service | |
| 11 | 1 |  | Science Weekly | The Guardian | |
| 12 | 73 |  | Skeptoid | Brian Dunning | |
| 13 | 90 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 14 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 15 | 105 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 16 | — | E | Economics In Ten | Economics In Ten | |
| 17 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 18 | 27 |  | BBC Inside Science | BBC Radio 4 | |
| 19 | 20 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 20 | 12 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 21 | 49 |  | Science In Action | BBC World Service | |
| 22 | 101 |  | The world, the universe and us | New Scientist | |
| 23 | 38 | T | The Animal Sensemaker | The Observer | |
| 24 | 64 | F | Feet on the Soil | Soil Boy | |
| 25 | 114 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 26 | 64 |  | That UFO Podcast | That UFO Podcast | |
| 27 | 165 |  | Mind & Matter | Nick Jikomes | |
| 28 | — |  | All In The Mind | ABC | |
| 29 | 14 |  | Ologies with Alie Ward | Alie Ward | |
| 30 | 14 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 31 | 113 |  | The Science of Birds | Ivan Phillipsen | |
| 32 | 20 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 33 | — | C | CountryWide | RTÉ Radio 1 | |
| 34 | — |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 35 | — |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 36 | 23 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 37 | — | N | New Books in Public Policy | New Books Network | |
| 38 | — | T | The Dissenter | Ricardo Lopes | |
| 39 | — | R | Relativity: The Special & General Theory | Albert Einstein | |
| 40 | 21 |  | Science Vs | Spotify Studios | |
| 41 | 27 |  | Short Wave | NPR | |
| 42 | — |  | The Bulletproof Musician | Noa Kageyama | |
| 43 | — |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 44 | — |  | Choiceology with Katy Milkman | Charles Schwab | |
| 45 | — |  | La Conversation scientifique | France Culture | |
| 46 | — | P | Paranormal Fears | Podcast Audio House, Bleav | |
| 47 | 26 |  | The Climate Question | BBC World Service | |
| 48 | 31 |  | The Michael Shermer Show | Michael Shermer | |
| 49 | 29 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 50 | 23 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 51 | 28 |  | New Books in Critical Theory | Marshall Poe | |
| 52 | 27 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 53 | 29 | T | The Universe Speaks in Numbers | Faber and Faber | |
| 54 | 28 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 55 | 26 |  | Invisibilia | NPR | |
| 56 | 28 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 57 | 21 | M | MissPerceived | Audiocrafty | |
| 58 | 27 |  | Let's Learn Everything! | Maximum Fun | |
| 59 | 29 | T | The Periodic Podcast | Jane Wilson | |
| 60 | 28 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 61 | 28 |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 62 | 28 |  | Small Steps, Giant Leaps | National Aeronautics and Space Administration (NASA) | |
| 63 | 28 | T | The Paramedic Coach Podcast | The Paramedic Coach | |
| 64 | 27 |  | Ancient Aliens | PodcastOne | |
| 65 | 27 | T | The Expert View | RCPI | |
| 66 | 18 |  | Discovery | BBC World Service | |
| 67 | 25 | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 68 | 25 | T | The Systemic Way | Sezer and Julie | |
| 69 | 23 |  | The Plodcast | Our Media | |
| 70 | 30 |  | Robinson's Podcast | Robinson Erhardt | |
| 71 | 30 |  | Paranormal Portal | Brent Thomas | |
| 72 | 68 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 73 | 26 | T | The Pasture Pod | Michael Blanche | |
| 74 | 37 |  | Unexpected Elements | BBC World Service | |
| 75 | 1 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 76 | 27 |  | Juan on Juan | Juan on Juan Media, LLC. | |
| 77 | 8 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 78 | 34 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 79 | 29 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 80 | 17 |  | The Horse First: A Veterinary Sport Horse Podcast | Audrey DeClue, DVM | |
| 81 | 28 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 82 | 31 |  | Naturebang | BBC Radio 4 | |
| 83 | 31 |  | You Are Not So Smart | You Are Not So Smart | |
| 84 | — |  | Bug Banter with the Xerces Society | The Xerces Society | |
| 85 | 30 |  | The Common Descent Podcast | Common Descent | |
| 86 | 32 |  | Diet Doctor Podcast | dietdoctorpodcast | |
| 87 | 10 | N | Naturefile | RTÉ lyric fm | |
| 88 | 32 |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 89 | 31 |  | پادکست آذرخش مکری - azarakhsh mokri | nimac | |
| 90 | 33 |  | Clinical Chemistry Podcast | Association for Diagnostics and Laboratory Medicine | |
| 91 | 32 | P | Psych | David Pizarro | |
| 92 | 32 |  | Nerdy About Nature | Nerdy About Nature | |
| 93 | 31 |  | SuperHumanizer Podcast | Dr. Hani Chaabo & Katie Bogen M.A. | |
| 94 | 29 | M | Motivational Interviewing & Beyond | Joel Porter & Steve Rollnick | |
| 95 | 29 |  | The Long Run with Luke Timmerman | Timmerman Report | |
| 96 | 29 | H | Hack The Box: Stories | Hack The Box | |
| 97 | 29 | T | Trauma Is Real | Sarah Buffie | |
| 98 | 34 |  | Drilled | Pushkin Industries | |
| 99 | 26 | I | In Your Nature | By BirdWatch Ireland | |
| 100 | 60 |  | Science Friday | Science Friday and WNYC Studios | |
