| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | — | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 3 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 1 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 6 | 3 |  | Overheard at National Geographic | National Geographic | |
| 7 | 4 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 8 | 3 |  | BBC Inside Science | BBC Radio 4 | |
| 9 | 4 | N | Naturefile | RTÉ lyric fm | |
| 10 | 11 |  | Radiolab | WNYC Studios | |
| 11 | 15 | C | CountryWide | RTÉ Radio 1 | |
| 12 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 13 | 26 |  | Science Vs | Spotify Studios | |
| 14 | 20 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 15 | 37 |  | Robinson's Podcast | Robinson Erhardt | |
| 16 | 14 |  | More or Less | BBC Radio 4 | |
| 17 | 9 |  | TED Talks Science and Medicine | TED | |
| 18 | 8 |  | Short Wave | NPR | |
| 19 | 7 | T | The Signpost Series | Teagasc | |
| 20 | 83 |  | The world, the universe and us | New Scientist | |
| 21 | 60 |  | The Climate Question | BBC World Service | |
| 22 | 8 |  | Science Weekly | The Guardian | |
| 23 | 7 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 24 | 123 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 25 | 98 |  | The Michael Shermer Show | Michael Shermer | |
| 26 | 82 | T | The Systemic Way | Sezer and Julie | |
| 27 | 12 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 28 | 148 |  | A Life More Wild | Canopy & Stars | |
| 29 | 138 |  | When Science Finds a Way | Wellcome | |
| 30 | 13 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 31 | — | T | The Reality Check | The Reality Check | |
| 32 | — |  | Nephilim Death Squad | TopLobsta Productions | |
| 33 | — |  | Settle the Stars: The Science of Space Exploration | Edgeworks Nebula | |
| 34 | — |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 35 | — | L | Loopje met de wetenschap | De Standaard | |
| 36 | — | T | The Cancer Trials Ireland Podcast | Cancer Trials Ireland | |
| 37 | — | M | Making Sense with Sam Harris | 5 minute podcast summaries | 5 minute podcast summaries | |
| 38 | — |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 39 | — |  | The Nature & Nurture Podcast | Adam Omary | |
| 40 | 7 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 41 | 22 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 42 | 20 |  | Discovery | BBC World Service | |
| 43 | 20 |  | Rare Earth | BBC Radio 4 | |
| 44 | 24 | C | Conversations With Nature | Joyce Veheary | |
| 45 | 20 |  | Astrum Space | Astrum | |
| 46 | 5 | O | Open Country | BBC Radio 4 | |
| 47 | 23 | N | New Scientist Weekly | New Scientist | |
| 48 | 19 |  | Speaking of Psychology | American Psychological Association | |
| 49 | 21 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 50 | 13 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 51 | 24 | F | Feet on the Soil | Soil Boy | |
| 52 | 2 |  | The Science Show | ABC | |
| 53 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 54 | 23 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 55 | 23 | C | Costing the Earth | BBC Radio 4 | |
| 56 | 21 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 57 | 14 | N | New Scientist CultureLab | New Scientist | |
| 58 | 22 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 59 | 19 |  | Science Magazine Podcast | Science Magazine | |
| 60 | 22 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 61 | 24 | 科 | 科学星球 | BOX孙彬 | |
| 62 | 21 |  | Speed & Scale | TED | |
| 63 | 21 |  | Great Mysteries of Physics | The Conversation | |
| 64 | 19 |  | The Couples Therapist Couch | Shane Birkel | |
| 65 | 21 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 66 | 20 | B | BirdSong Podcast | BirdSong Podcast | |
| 67 | 20 | P | Psychology | Yale School of Medicine | |
| 68 | 20 | N | New Scientist Escape Pod | New Scientist | |
| 69 | 20 | M | Messages from the Wild | Annabel Ross | |
| 70 | 20 | P | Paws & Reward Podcast | Marissa Martino, CDBC, CTC | |
| 71 | 6 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 72 | 19 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 73 | 18 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 74 | 14 |  | Science In Action | BBC World Service | |
| 75 | 7 |  | CrowdScience | BBC World Service | |
| 76 | 18 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 77 | 20 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 78 | 19 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 79 | 18 |  | The New Quantum Era - innovation in quantum computing, science and technology | Sebastian Hassinger | |
| 80 | 18 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 81 | 13 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 82 | 18 |  | Space Boffins, from the Naked Scientists | Richard Hollingham, Sue Nelson | |
| 83 | — |  | Unexplainable | Vox | |
| 84 | 17 |  | The Psychology Podcast | iHeartPodcasts | |
| 85 | 19 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 86 | 12 |  | Outside/In | NHPR | |
| 87 | 7 | A | astro[sound]bites | astrosoundbites | |
| 88 | 20 | T | The Pasture Pod | Michael Blanche | |
| 89 | 19 |  | This Week in Space (Audio) | TWiT | |
| 90 | 21 | O | Opensciences.ch | Jay Webster | |
| 91 | 20 |  | Crossing The River | More Than Human Life (MOTH) | |
| 92 | 20 | S | Step Inside the Danish National Biobank | Danish National Biobank | |
| 93 | 20 | W | Why? with Emma Kennedy | Podmasters | |
| 94 | 19 | S | Supersymmetry, Grand Unification, and String Theory | Stanford Continuing Studies Program | |
| 95 | 19 | M | Modern Physics: Quantum Mechanics (Winter 2012) | Leonard Susskind | |
| 96 | 19 | S | Space News Today | Bitesz.com | Podcasts | |
| 97 | 19 | B | Brain Train Podcast | Martin Zaltz Austwick and Alice Bell | |
| 98 | 80 | Q | Quantisophy LLC Podcast | Quantisophy LLC | |
| 99 | 20 |  | Stars, Cells, and God | Reasons to Believe | |
| 100 | 16 | P | PIIE Insider LIVE | Peterson Institute for International Economics | |
