| 1 | — |  | All In The Mind | ABC | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | — |  | Dr Karl Podcast | triplej | |
| 4 | 1 |  | The Science Show | ABC | |
| 5 | 1 |  | Radiolab | WNYC Studios | |
| 6 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 8 | 2 | W | What The Duck?! | ABC | |
| 9 | 3 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 10 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 11 | 5 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 12 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 13 | — |  | Curious Cases | BBC Radio 4 | |
| 14 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 15 | 1 |  | Science Vs | Spotify Studios | |
| 16 | 2 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 17 | 2 | T | The Weather That Changed Us | ABC | |
| 18 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 19 | 5 |  | More or Less | BBC Radio 4 | |
| 20 | — |  | The Psychology Podcast | iHeartPodcasts | |
| 21 | 6 | M | MissPerceived | Audiocrafty | |
| 22 | 24 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 23 | 159 |  | Reskillience | Catie Payne | |
| 24 | 3 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 25 | 4 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 26 | 15 |  | CrowdScience | BBC World Service | |
| 27 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 28 | 5 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 29 | 1 |  | Science Weekly | The Guardian | |
| 30 | 5 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 31 | 9 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 32 | 13 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 33 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 34 | 2 |  | Unexplainable | Vox | |
| 35 | 3 |  | Universe Today Podcast | Fraser Cain | |
| 36 | 2 |  | That UFO Podcast | That UFO Podcast | |
| 37 | 11 |  | The world, the universe and us | New Scientist | |
| 38 | 3 |  | BBC Inside Science | BBC Radio 4 | |
| 39 | 1 |  | Mysterious Universe | 8th Kind | |
| 40 | 9 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 41 | 18 | B | Blazing the Trail | University of Sydney / Australian Museum / Break Thru Films | |
| 42 | 3 |  | Need To Know | Bryce Zabel | |
| 43 | 7 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 44 | 7 |  | Head Shepherd | Mark Ferguson | |
| 45 | 3 |  | Discovery | BBC World Service | |
| 46 | 20 |  | Skeptoid | Brian Dunning | |
| 47 | 5 | B | Branch Out | Botanic Gardens of Sydney | |
| 48 | 8 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 49 | 3 |  | Unexpected Elements | BBC World Service | |
| 50 | 11 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 51 | 41 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 52 | 2 |  | Speaking of Psychology | American Psychological Association | |
| 53 | 4 | W | Weekend Birder | Kirsty Costa | |
| 54 | 36 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 55 | 10 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 56 | 8 |  | Science In Action | BBC World Service | |
| 57 | 13 |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 58 | 24 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 59 | 4 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 60 | 23 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 61 | 77 |  | Invisibilia | NPR | |
| 62 | 107 | T | The Brain Matters Podcast | The Florey | |
| 63 | 78 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 64 | 62 | T | The Grazing Game Podcast | Cam Griffin | |
| 65 | 9 |  | Overheard at National Geographic | National Geographic | |
| 66 | 17 |  | Regenerative Agriculture Podcast | John Kempf | |
| 67 | 20 | P | PsychTalks | Melbourne School of Psychological Sciences | |
| 68 | 9 |  | Science Friday | Science Friday and WNYC Studios | |
| 69 | 89 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 70 | 12 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 71 | 10 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 72 | 25 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 73 | 4 |  | Let's Learn Everything! | Maximum Fun | |
| 74 | 27 | W | Why? with Emma Kennedy | Podmasters | |
| 75 | 22 |  | Blurry Creatures | Blurry Creatures | |
| 76 | 10 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 77 | 109 |  | TED Talks Science and Medicine | TED | |
| 78 | 117 |  | The Sociology of Everything Podcast | Eric Hsu & Louis Everuss (Lou & the Hsu) | |
| 79 | 5 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 80 | 4 |  | Skeptics with a K | Skeptic Media Limited | |
| 81 | 50 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 82 | 11 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 83 | 11 |  | Origin Stories | The Leakey Foundation | |
| 84 | — |  | How We're Wired | The Bertarelli Foundation | |
| 85 | 10 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 86 | 26 |  | Short Wave | NPR | |
| 87 | 13 |  | Most Terrifying Places in America | Travel Channel | |
| 88 | 4 | O | Off Track | ABC | |
| 89 | 27 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 90 | 3 |  | UFO Chronicles Podcast | Nik Hunter | |
| 91 | — |  | The Astrophysics Podcast | Paul Duffell | |
| 92 | 17 |  | TheThinkingAtheist | The Thinking Atheist | |
| 93 | 19 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 94 | 20 |  | Scotland Outdoors | BBC Radio Scotland | |
| 95 | 17 | C | Clinically Thinking | Clinically Thinking | |
| 96 | 26 | N | Nature Track | ABC | |
| 97 | 17 |  | I Was Prey | Animal Planet | |
| 98 | 9 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 99 | 37 |  | The Common Descent Podcast | Common Descent | |
| 100 | 27 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
