| 1 | — |  | Radiolab | WNYC Studios | |
| 2 | 57 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 3 | 1 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 4 | — |  | Overheard at National Geographic | National Geographic | |
| 5 | 2 |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 6 | 1 | P | Psychiatric Services From Pages to Practice | Psychiatric Services | |
| 7 | 1 |  | Hva så?! forklarer alt | Christian Fuhlendorff | |
| 8 | 1 |  | Curious Cases | BBC Radio 4 | |
| 9 | 2 |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 10 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 11 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 12 | 2 |  | Podcast UFO | Martin Willis | |
| 13 | — |  | Songbirding: A Birding-by-ear Podcast | Rob Porter | |
| 14 | 3 |  | More or Less | BBC Radio 4 | |
| 15 | 1 | V | Virka Efnið | Virka Efnið | |
| 16 | 1 |  | Historien om alt | Podimo | |
| 17 | 19 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 18 | 2 |  | Unexplainable | Vox | |
| 19 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 20 | 36 |  | Science In Action | BBC World Service | |
| 21 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 22 | 3 |  | The Science of Everything Podcast | James Fodor | |
| 23 | 20 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 24 | 16 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 25 | 12 |  | Short Wave | NPR | |
| 26 | 11 |  | Science Weekly | The Guardian | |
| 27 | 17 |  | UFO Chronicles Podcast | Nik Hunter | |
| 28 | 44 |  | Ologies with Alie Ward | Alie Ward | |
| 29 | 11 |  | Let's Learn Everything! | Maximum Fun | |
| 30 | 3 |  | The Multiverse Employee Handbook | Robb Corrigan | |
| 31 | 113 |  | The Orthobullets Podcast | Orthobullets | |
| 32 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 33 | 16 |  | The world, the universe and us | New Scientist | |
| 34 | 100 |  | Skeptics with a K | Skeptic Media Limited | |
| 35 | 125 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 36 | 146 |  | The Behavioral Observations Podcast with Matt Cicoria | Matt Cicoria | |
| 37 | 5 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 38 | 7 |  | Nature Podcast | Springer Nature Limited | |
| 39 | 14 |  | Making Sense with Sam Harris | Sam Harris | |
| 40 | 9 |  | Science Vs | Spotify Studios | |
| 41 | 67 |  | Science Friction | ABC | |
| 42 | — |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 43 | 21 |  | Speaking of Psychology | American Psychological Association | |
| 44 | 126 |  | Physics World Weekly Podcast | Physics World | |
| 45 | 7 |  | This Week in Cardiology | Medscape | |
| 46 | 25 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 47 | 27 | D | Dagbók Urriða | Ólafur Guðbjartsson | |
| 48 | 63 |  | The Medbullets Step 2 & 3 Podcast | Medbullets | |
| 49 | 37 |  | BBC Inside Science | BBC Radio 4 | |
| 50 | 16 |  | Vetenskapsradion | Sveriges Radio | |
| 51 | 142 |  | Dumma Människor | Acast - Lina Thomsgård och Björn Hedensjö | |
| 52 | 2 |  | Science Friday | Science Friday and WNYC Studios | |
| 53 | 63 |  | You Are Not So Smart | You Are Not So Smart | |
| 54 | 30 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
| 55 | 29 |  | Unexpected Elements | BBC World Service | |
| 56 | 72 |  | This Week in Virology | Vincent Racaniello | |
| 57 | 11 | C | Converging Dialogues | Converging Dialogues | |
| 58 | 11 |  | Invisibilia | NPR | |
| 59 | 11 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 60 | 10 | 2 | 2050: Degrees of Change | CBC | |
| 61 | 33 | R | Rain Sounds Podcast | Natural Podcasts | |
| 62 | — |  | The DemystifySci Podcast | DemystifySci | |
| 63 | 34 |  | Total Disclosure Podcast | Tyler Roberts | |
| 64 | 34 |  | That UFO Podcast | That UFO Podcast | |
| 65 | 14 |  | The Plodcast | Our Media | |
| 66 | 6 |  | Discovery | BBC World Service | |
| 67 | 94 |  | Dr Karl Podcast | triplej | |
| 68 | 35 |  | The Micah Hanks Program | Micah Hanks | |
| 69 | 131 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 70 | 35 |  | New Books in Critical Theory | Marshall Poe | |
| 71 | 16 | I | Innrás froskanna | RÚV Hlaðvörp | |
| 72 | — |  | PlanetGeo: The Geology Podcast | Chris and Jesse | |
| 73 | 34 | N | New Books in Environmental Studies | Marshall Poe | |
| 74 | 33 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 75 | — |  | The Quanta Podcast | Quanta Magazine | |
| 76 | — | L | Leonardo Plus | Český rozhlas | |
| 77 | 26 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 78 | 26 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 79 | 26 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 80 | 11 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 81 | 22 | 2 | 24/7 | Beggi Ólafs | |
| 82 | 21 |  | Instant Genius | Our Media | |
| 83 | 52 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 84 | 27 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 85 | 27 |  | Crazy Town | Post Carbon Institute | |
| 86 | 4 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 87 | 25 |  | Videnskabeligt Udfordret | Mark Lyng, Flemming Damgaard, Nikolaj V. Hansen | |
| 88 | 25 |  | Astrum Space | Astrum | |
| 89 | 25 |  | Are We There Yet? | Central Florida Public Media | |
| 90 | 25 |  | Skeptoid | Brian Dunning | |
| 91 | 25 | N | Nauka To Lubię | Tomasz Rożek | |
| 92 | 25 | I | It's a Very Exciting Time | Scott Vandehey & Chuck Lauer Vose | |
| 93 | 25 |  | Science Quickly | Scientific American | |
| 94 | 24 |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 95 | 7 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 96 | 25 |  | Psychedelics Today | Psychedelics Today | |
| 97 | 24 |  | Tingenes Tilstand | HENRI & Acast | |
| 98 | 23 |  | Countercurrent: conversations with Professor Roger Kneebone | Professor Roger Kneebone | |
| 99 | 23 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 100 | 23 |  | The Supermassive Podcast | The Royal Astronomical Society | |
