| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | — |  | Radiolab | WNYC Studios | |
| 3 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | — |  | Ologies with Alie Ward | Alie Ward | |
| 6 | — |  | BBC Inside Science | BBC Radio 4 | |
| 7 | — | O | Our Changing World | RNZ | |
| 8 | — |  | Science Vs | Spotify Studios | |
| 9 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 10 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 11 | — |  | Science Weekly | The Guardian | |
| 12 | — |  | Science In Action | BBC World Service | |
| 13 | — |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 14 | — |  | Curious Cases | BBC Radio 4 | |
| 15 | — |  | Discovery | BBC World Service | |
| 16 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 17 | — |  | More or Less | BBC Radio 4 | |
| 18 | — |  | All In The Mind | ABC | |
| 19 | — |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 20 | — | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 21 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 22 | — |  | CrowdScience | BBC World Service | |
| 23 | — |  | Unexpected Elements | BBC World Service | |
| 24 | — |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 25 | — |  | Unexplainable | Vox | |
| 26 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 27 | — |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 28 | — |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 29 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 30 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 31 | — |  | Dr Karl Podcast | triplej | |
| 32 | — |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 33 | — |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 34 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 35 | — | E | Elemental | RNZ | |
| 36 | — |  | Science Friday | Science Friday and WNYC Studios | |
| 37 | — | O | Our Big Shot | Humanly Possible | |
| 38 | — | B | blurbs | Matt Ross | |
| 39 | — |  | Short Wave | NPR | |
| 40 | — |  | New Books in Critical Theory | Marshall Poe | |
| 41 | — |  | The House of Pod | Kaveh MD | |
| 42 | — |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 43 | — |  | Astronomy Daily: Space News Updates | bitesz.com | |
| 44 | — |  | The world, the universe and us | New Scientist | |
| 45 | — | O | Open Country | BBC Radio 4 | |
| 46 | — |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 47 | — |  | Overheard at National Geographic | National Geographic | |
| 48 | — |  | Slow Radio | BBC Radio 3 | |
| 49 | — | T | The International Security Podcast | International Security | |
| 50 | — |  | Mysterious Universe | 8th Kind | |
| 51 | — |  | That UFO Podcast | That UFO Podcast | |
| 52 | — |  | The Psychology Podcast | iHeartPodcasts | |
| 53 | — |  | Ancient Aliens | PodcastOne | |
| 54 | — |  | Universe Today Podcast | Fraser Cain | |
| 55 | — |  | Nephilim Death Squad | TopLobsta Productions | |
| 56 | — |  | Blurry Creatures | Blurry Creatures | |
| 57 | — |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 58 | — |  | The Michael Shermer Show | Michael Shermer | |
| 59 | — |  | Others From Another Mother | Dan Cleary and Chad Shlosser | |
| 60 | — | R | Rewilding In Action | Maureen Howard | |
| 61 | — |  | Science Friction | ABC | |
| 62 | — |  | The Quanta Podcast | Quanta Magazine | |
| 63 | — | M | MissPerceived | Audiocrafty | |
| 64 | — |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 65 | — |  | Somewhere in the Skies | SpectreVision Radio | |
| 66 | — | T | The Al & Juddy Show | Agricom | |
| 67 | — |  | Beyond the Paradigm | Paul Breckell | |
| 68 | — | N | New Books in Psychology | Marshall Poe | |
| 69 | — |  | Why Do We Do That? | BBC Radio 4 | |
| 70 | — |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 71 | — |  | The Story Collider | Story Collider, Inc. | |
| 72 | — | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 73 | — | E | Elements | BBC World Service | |
| 74 | — |  | The Life Scientific | BBC Radio 4 | |
| 75 | — |  | Chemistry Made Simple | Matthew Macariou | |
| 76 | — | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 77 | — | N | Nocturnal Worlds | Audiocraft | |
| 78 | — |  | Skeptics with a K | Skeptic Media Limited | |
| 79 | — |  | Let's Learn Everything! | Maximum Fun | |
| 80 | — |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 81 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 82 | — |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 83 | — |  | Accidental Gods | Accidental Gods | |
| 84 | — |  | A Life More Wild | Canopy & Stars | |
| 85 | — |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 86 | — |  | TheThinkingAtheist | The Thinking Atheist | |
| 87 | — |  | Google DeepMind: The Podcast | Hannah Fry | |
| 88 | — |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 89 | — |  | Science with Sabine | Sabine Hossenfelder | |
| 90 | — |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 91 | — |  | The Behavioral Design Podcast | Samuel Salzer and Aline Holzwarth | |
| 92 | — | L | Let It Flow Podcast | Let It Flow | |
| 93 | — |  | Better Brain Fitness (a Brainjo Production) | Josh Turknett, MD | |
| 94 | — |  | Nature Podcast | Springer Nature Limited | |
| 95 | — | G | Genetics Unzipped | The Genetics Society | |
| 96 | — |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 97 | — | G | Genetics (Audio) | UCTV | |
| 98 | — | R | Real World Behavioural Science | Stu King | |
| 99 | — |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 100 | — |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
