| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | 2 |  | Unexplainable | Vox | |
| 6 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 5 |  | Science Vs | Spotify Studios | |
| 9 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 10 | 2 |  | BBC Inside Science | BBC Radio 4 | |
| 11 | 5 |  | Making Sense with Sam Harris | Sam Harris | |
| 12 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 13 | 5 |  | Science Weekly | The Guardian | |
| 15 | 1 | B | Boring History for Sleep | Velvet | |
| 16 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 17 | 6 |  | More or Less | BBC Radio 4 | |
| 18 | 7 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 19 | 4 |  | Nature Podcast | Springer Nature Limited | |
| 20 | 3 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 21 | 37 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 22 | 8 |  | Curious Cases | BBC Radio 4 | |
| 24 | 67 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 26 | 7 |  | Discovery | BBC World Service | |
| 27 | 5 |  | Speaking of Psychology | American Psychological Association | |
| 28 | 1 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 29 | 58 |  | Get Birding | Peanut & Crumb | |
| 30 | 64 |  | Blurry Creatures | Blurry Creatures | |
| 31 | 7 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 32 | 9 |  | Short Wave | NPR | |
| 33 | 90 |  | Planet Em | Emily McDonald | |
| 34 | 56 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 35 | 8 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 36 | 8 |  | UFO Chronicles Podcast | Nik Hunter | |
| 37 | 11 |  | Overheard at National Geographic | National Geographic | |
| 38 | 55 | C | Cryptography FM | Symbolic Software | |
| 39 | 130 |  | StarTalk Podcast | StarTalk Podcast | |
| 40 | 20 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 42 | 11 |  | Planet Possible | CIWEM | |
| 43 | — |  | Flash Forward | Rose Eveleth | |
| 44 | — |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 45 | 10 |  | The Michael Shermer Show | Michael Shermer | |
| 47 | 117 |  | Alive Again | iHeartPodcasts | |
| 48 | 14 | T | The Physio Matters Podcast | Jack Chew | |
| 49 | — |  | The Acres U.S.A. Podcast | Acres U.S.A.® | |
| 50 | — |  | Completely Arbortrary | Completely Arbortrary | |
| 51 | — |  | In Pursuit of Development | Dan Banik | |
| 52 | — | T | The OTA Podcast | OTA Podcast Committee | |
| 53 | 10 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 54 | 106 |  | SASQUATCH THEORY | SASQUATCH THEORY | |
| 55 | 23 |  | When Science Finds a Way | Wellcome | |
| 56 | 24 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 57 | 31 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 58 | 13 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 59 | 15 |  | The world, the universe and us | New Scientist | |
| 60 | 18 |  | Babbage from The Economist | The Economist | |
| 61 | 4 | T | The Genetics Podcast | Sano Genetics | |
| 62 | 16 |  | From First Principles | Krishna Choudhary and Lester Nare | |
| 63 | 34 |  | Science Quickly | Scientific American | |
| 64 | 36 |  | CrowdScience | BBC World Service | |
| 65 | 5 |  | The Orthobullets Podcast | Orthobullets | |
| 66 | 19 |  | Big Brains | University of Chicago Podcast Network | |
| 68 | 19 |  | Raising Health | Andreessen Horowitz, a16z Bio + Health | |
| 69 | 29 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 70 | 31 |  | Planet Visionaries – SEASON 5 | A podcast in partnership with The Rolex Perpetual Planet Initiative | |
| 71 | 74 |  | TheThinkingAtheist | The Thinking Atheist | |
| 72 | 24 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 73 | 40 |  | Science Friday | Science Friday and WNYC Studios | |
| 74 | 37 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 75 | 25 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 78 | 26 |  | The Couples Therapist Couch | Shane Birkel | |
| 79 | 28 |  | The Psychology Podcast | iHeartPodcasts | |
| 82 | 14 | I | Ideas in Development | Ideas in Development | |
| 83 | 43 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 86 | 5 |  | That UFO Podcast | That UFO Podcast | |
| 87 | 22 |  | Nice Genes! | Genome BC | |
| 88 | 22 | D | Developmental Medicine and Child Neurology | Developmental Medicine and Child Neurology | |
| 89 | 22 | P | Public Health Group Chat | Ariel, Olivia, and Mattie | |
| 90 | 21 | C | Complicating The Narrative | Salma Abdalla | |
| 91 | 21 | N | No Echo Chambers | Time Well Spent | |
| 92 | 7 |  | Universe Today Podcast | Fraser Cain | |
| 93 | 21 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 94 | 10 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 96 | 19 |  | The Life Scientific | BBC Radio 4 | |
| 97 | 49 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 98 | 44 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 99 | 16 |  | The Science of Everything Podcast | James Fodor | |
| 100 | 47 |  | The Quanta Podcast | Quanta Magazine | |
| 101 | — |  | Unexpected Elements | BBC World Service | |
| 102 | 26 | F | Farming Today | BBC Radio 4 | |
| 103 | 24 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 104 | 40 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 105 | 27 |  | Deep Seed - Regenerative Agriculture | Raphael Esterhazy | |
| 106 | 6 |  | Emergency Medicine Board Bombs | EM Board Bombs | |
| 107 | — |  | Leaked | TFLabs | |
| 108 | 52 |  | Science Magazine Podcast | Science Magazine | |
| 109 | 4 |  | Naked Astronomy, from the Naked Scientists | The Naked Scientists | |
| 110 | 13 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 111 | 89 |  | Skeptoid | Brian Dunning | |
| 112 | 42 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 113 | 27 |  | Today's discussion on unraveling BPC 157 Peptide | Infinity Peptides | |
| 114 | 25 |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 114 | — | N | Naked Genetics, from the Naked Scientists | Will Tingle | |
