| 1 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | — |  | Curious Cases | BBC Radio 4 | |
| 3 | 2 |  | Unexplainable | Vox | |
| 4 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 8 |  | Radiolab | WNYC Studios | |
| 6 | 4 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 7 | 4 |  | More or Less | BBC Radio 4 | |
| 8 | 5 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 9 | 96 |  | CrowdScience | BBC World Service | |
| 10 | 4 |  | Science Weekly | The Guardian | |
| 11 | 2 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 12 | 5 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 13 | 16 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 14 | 6 |  | Short Wave | NPR | |
| 15 | 37 |  | Ologies with Alie Ward | Alie Ward | |
| 16 | 35 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 17 | 36 |  | The Michael Shermer Show | Michael Shermer | |
| 18 | 6 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 19 | 2 |  | Science Vs | Spotify Studios | |
| 20 | 55 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 21 | 7 |  | The Climate Question | BBC World Service | |
| 22 | 102 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 23 | 111 |  | New Books in Critical Theory | Marshall Poe | |
| 24 | 112 | T | The Universe Speaks in Numbers | Faber and Faber | |
| 25 | 134 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 26 | 156 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 27 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 28 | — |  | The Nature Of with Willow Defebaugh | Atmos | |
| 29 | — |  | Invisibilia | NPR | |
| 30 | — | T | The Periodic Podcast | Jane Wilson | |
| 31 | — |  | Let's Learn Everything! | Maximum Fun | |
| 32 | — | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 33 | — |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 34 | — |  | Small Steps, Giant Leaps | National Aeronautics and Space Administration (NASA) | |
| 35 | — | T | The Paramedic Coach Podcast | The Paramedic Coach | |
| 36 | — | M | MissPerceived | Audiocrafty | |
| 37 | 22 |  | Ancient Aliens | PodcastOne | |
| 38 | 22 | T | The Expert View | RCPI | |
| 39 | 17 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 40 | 22 |  | Robinson's Podcast | Robinson Erhardt | |
| 41 | 21 |  | Paranormal Portal | Brent Thomas | |
| 42 | 21 | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 43 | 24 | T | The Systemic Way | Sezer and Julie | |
| 44 | 17 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 45 | 15 |  | BBC Inside Science | BBC Radio 4 | |
| 46 | 21 |  | The Plodcast | Our Media | |
| 47 | 24 | T | The Pasture Pod | Michael Blanche | |
| 48 | 24 |  | Discovery | BBC World Service | |
| 49 | 13 |  | Juan on Juan | Juan on Juan Media, LLC. | |
| 50 | 20 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 51 | 20 |  | Naturebang | BBC Radio 4 | |
| 52 | 24 |  | You Are Not So Smart | You Are Not So Smart | |
| 53 | 14 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 54 | 7 |  | Diet Doctor Podcast | dietdoctorpodcast | |
| 55 | 22 |  | The Common Descent Podcast | Common Descent | |
| 56 | 24 |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 57 | 17 |  | Clinical Chemistry Podcast | Association for Diagnostics and Laboratory Medicine | |
| 58 | 24 |  | پادکست آذرخش مکری - azarakhsh mokri | nimac | |
| 59 | 24 | P | Psych | David Pizarro | |
| 60 | 22 |  | Nerdy About Nature | Nerdy About Nature | |
| 61 | 20 | T | The Animal Sensemaker | The Observer | |
| 62 | 20 |  | SuperHumanizer Podcast | Dr. Hani Chaabo & Katie Bogen M.A. | |
| 63 | 20 |  | The Horse First: A Veterinary Sport Horse Podcast | Audrey DeClue, DVM | |
| 64 | 15 |  | Drilled | Pushkin Industries | |
| 65 | 21 | M | Motivational Interviewing & Beyond | Joel Porter & Steve Rollnick | |
| 66 | 21 |  | The Long Run with Luke Timmerman | Timmerman Report | |
| 67 | 21 | H | Hack The Box: Stories | Hack The Box | |
| 68 | 20 | T | Trauma Is Real | Sarah Buffie | |
| 69 | 19 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 70 | 76 |  | Science In Action | BBC World Service | |
| 71 | 17 | M | Money Power Health with Nason Maani | Nason Maani | |
| 72 | 14 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 73 | 18 | I | In Your Nature | By BirdWatch Ireland | |
| 74 | 45 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 75 | 12 | A | A Wild Mind | Andrea Bariselli | |
| 76 | 20 | B | Breakthroughs | Pfizer | |
| 77 | 18 | N | Naturefile | RTÉ lyric fm | |
| 78 | 7 | T | The Human Subject | BBC Radio 4 | |
| 79 | 21 |  | Need To Know | Bryce Zabel | |
| 80 | 23 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 81 | 19 | L | Love The Bees Podcast | Yvonne Johnston | |
| 82 | 8 | C | Conservation and Science | Tommy's Outdoors | |
| 83 | 19 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 84 | 19 | M | Mysteries of the Universe | TheTuringApp.Com | |
| 85 | 17 |  | Skeptoid | Brian Dunning | |
| 86 | 13 |  | Origin Stories | The Leakey Foundation | |
| 87 | 17 |  | Instant Genius | Our Media | |
| 88 | 21 | F | Feet on the Soil | Soil Boy | |
| 89 | — |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 90 | 24 |  | That UFO Podcast | That UFO Podcast | |
| 91 | 22 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 92 | 25 |  | The Psychology Podcast | iHeartPodcasts | |
| 93 | 21 | Z | Zjisti víc | Jakub Straka, David Klouda | |
| 94 | 18 | D | Der Wissenskompass - Gesünder leben mit Bas Kast | Hello Health / Bas Kast | |
| 95 | 18 | I | Immunotec Podcast | Immunotec inc | |
| 96 | 59 | N | New Books in Systems and Cybernetics | New Books Network | |
| 97 | 19 |  | Speed & Scale | TED | |
| 98 | 19 | Q | Qualitative Research Methods for Everyone Podcast | Policy Press | |
| 99 | 18 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 100 | 20 | T | The WildX Podcast | Andy Green, Mike Phelps and Adam Juckes | |
