| 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 | 1 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 5 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 65 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 7 | 16 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 8 | 2 |  | Overheard at National Geographic | National Geographic | |
| 9 | 175 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 10 | 31 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 11 | 63 |  | Science In Action | BBC World Service | |
| 12 | 1 |  | Science Vs | Spotify Studios | |
| 13 | 112 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 14 | 134 |  | Science Friday | Science Friday and WNYC Studios | |
| 15 | 1 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 16 | 9 |  | The Michael Shermer Show | Michael Shermer | |
| 17 | 1 |  | Short Wave | NPR | |
| 18 | 22 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 19 | 9 |  | Radiolab | WNYC Studios | |
| 20 | — |  | Aha! Zehn Minuten Alltags-Wissen | WELT | |
| 21 | 10 | C | CountryWide | RTÉ Radio 1 | |
| 22 | 15 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 23 | 22 |  | Astrum Space | Astrum | |
| 24 | 16 |  | BBC Inside Science | BBC Radio 4 | |
| 25 | 21 | O | Open Country | BBC Radio 4 | |
| 26 | 10 |  | More or Less | BBC Radio 4 | |
| 27 | — | L | Love The Bees Podcast | Yvonne Johnston | |
| 28 | 19 | N | Naturefile | RTÉ lyric fm | |
| 29 | 93 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 30 | 71 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 31 | 55 |  | Outside/In | NHPR | |
| 32 | 88 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 33 | 76 |  | Naturebang | BBC Radio 4 | |
| 34 | 22 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 35 | 163 | I | In Your Nature | By BirdWatch Ireland | |
| 36 | 95 |  | The 365 Days of Astronomy | 365DaysOfAstronomy.org | |
| 37 | 22 |  | Robinson's Podcast | Robinson Erhardt | |
| 38 | — | S | Sci Guys | The Sci Guys | |
| 39 | 146 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 40 | — |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 41 | 152 |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 42 | — |  | Geopop - Le Scienze nella vita di tutti i giorni | Geopop | |
| 43 | — | L | La fabrique du savoir | Le Monde | |
| 44 | — | O | Origins & Evolution | Origins | |
| 45 | — |  | Sea Change | WWNO & WRKF | |
| 46 | — | C | CO2 mon Amour | France Inter | |
| 47 | — | ( | (Nie)widzialne: nauka bez tajemnic | Collegium Invisibile | |
| 48 | — |  | Memo Training - Porta in palestra la tua memoria | OnePodcast | |
| 49 | — | מ | מעצבים תודעה | רדיו תל אביב TEL AVIV RADIO | |
| 50 | 28 |  | Science Weekly | The Guardian | |
| 51 | 34 |  | TED Talks Science and Medicine | TED | |
| 52 | 28 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 53 | 33 |  | The world, the universe and us | New Scientist | |
| 54 | 4 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 55 | 34 |  | The Climate Question | BBC World Service | |
| 56 | 26 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 57 | 31 | T | The Systemic Way | Sezer and Julie | |
| 58 | 71 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 59 | 32 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 60 | 21 |  | The Nature & Nurture Podcast | Adam Omary | |
| 61 | 29 |  | Nephilim Death Squad | TopLobsta Productions | |
| 62 | 33 |  | When Science Finds a Way | Wellcome | |
| 63 | 35 |  | A Life More Wild | Canopy & Stars | |
| 64 | 29 | L | Loopje met de wetenschap | De Standaard | |
| 65 | 32 |  | Settle the Stars: The Science of Space Exploration | Edgeworks Nebula | |
| 66 | 35 | T | The Reality Check | The Reality Check | |
| 67 | 8 |  | CrowdScience | BBC World Service | |
| 68 | 34 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 69 | 32 | M | Making Sense with Sam Harris | 5 minute podcast summaries | 5 minute podcast summaries | |
| 70 | 34 | T | The Cancer Trials Ireland Podcast | Cancer Trials Ireland | |
| 71 | 33 |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 72 | 53 | T | The Signpost Series | Teagasc | |
| 73 | 20 |  | Ologies with Alie Ward | Alie Ward | |
| 74 | 32 |  | Discovery | BBC World Service | |
| 75 | 32 |  | Rare Earth | BBC Radio 4 | |
| 76 | 27 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 77 | 19 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 78 | 34 | C | Conversations With Nature | Joyce Veheary | |
| 79 | 32 | N | New Scientist Weekly | New Scientist | |
| 80 | 32 |  | Speaking of Psychology | American Psychological Association | |
| 81 | 30 | F | Feet on the Soil | Soil Boy | |
| 82 | 23 |  | Science Magazine Podcast | Science Magazine | |
| 83 | 31 |  | The Science Show | ABC | |
| 84 | 12 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 85 | 31 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 86 | 31 | C | Costing the Earth | BBC Radio 4 | |
| 87 | 27 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 88 | 15 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 89 | 33 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 90 | 33 | N | New Scientist CultureLab | New Scientist | |
| 91 | 27 |  | The Couples Therapist Couch | Shane Birkel | |
| 92 | 29 |  | Great Mysteries of Physics | The Conversation | |
| 93 | 28 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 94 | — |  | Why Do We Do That? | BBC Radio 4 | |
| 95 | 34 | 科 | 科学星球 | BOX孙彬 | |
| 96 | 34 |  | Speed & Scale | TED | |
| 97 | 29 | N | New Scientist Escape Pod | New Scientist | |
| 98 | 32 | B | BirdSong Podcast | BirdSong Podcast | |
| 99 | 32 | P | Psychology | Yale School of Medicine | |
| 100 | 31 | M | Messages from the Wild | Annabel Ross | |
