| 1 | 2 |  | The world, the universe and us | New Scientist | |
| 2 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 2 |  | Curious Cases | BBC Radio 4 | |
| 4 | 2 |  | Science Vs | Spotify Studios | |
| 5 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 6 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 1 |  | All In The Mind | ABC | |
| 8 | 24 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 9 | 3 |  | Radiolab | WNYC Studios | |
| 10 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 11 | 2 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 12 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 13 | 20 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 14 | 1 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 15 | 14 |  | The Life Scientific | BBC Radio 4 | |
| 16 | 143 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 17 | 6 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 18 | — |  | MinuteEarth | Minute Earth | |
| 19 | 49 | O | Our Changing World | RNZ | |
| 20 | 1 |  | More or Less | BBC Radio 4 | |
| 21 | 9 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 22 | 10 |  | Alive Again | iHeartPodcasts | |
| 23 | 9 |  | Unexplainable | Vox | |
| 24 | 7 |  | BBC Inside Science | BBC Radio 4 | |
| 25 | 6 | W | What The Duck?! | ABC | |
| 26 | 87 |  | Overheard at National Geographic | National Geographic | |
| 27 | 11 |  | CrowdScience | BBC World Service | |
| 28 | 47 |  | Science Weekly | The Guardian | |
| 29 | 14 |  | Evolutionary Psychology (the podcast) | Dave Pietraszewski & David Pinsof | |
| 30 | 16 |  | Manifold | Steve Hsu | |
| 31 | — |  | Speed & Scale | TED | |
| 32 | — |  | The Sustainability Agenda | Fergal Byrne | |
| 33 | — | T | The Belt and Road Podcast | Erik Myxter-iino, Juliet Lu and Keren Zhu - edited by Taili Ni | |
| 34 | — | F | Find Your Wild Podcast | Find Your Wild Podcast | |
| 35 | 69 |  | The Psychology Podcast | iHeartPodcasts | |
| 36 | 3 |  | Short Wave | NPR | |
| 37 | 18 |  | You Are Not So Smart | You Are Not So Smart | |
| 38 | 80 | N | New Scientist Weekly | New Scientist | |
| 39 | 14 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 40 | 91 |  | TheThinkingAtheist | The Thinking Atheist | |
| 41 | 21 |  | Science In Action | BBC World Service | |
| 42 | 87 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 43 | — | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 44 | 21 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 45 | 103 |  | Skeptoid | Brian Dunning | |
| 46 | 98 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 47 | 145 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 48 | 124 | W | Wild Tales | Nature Podcast | National Trust | |
| 49 | — |  | Health Wanted | WABE | |
| 50 | 28 |  | Naturebang | BBC Radio 4 | |
| 51 | — |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 52 | — |  | Emergency Medicine Board Bombs | EM Board Bombs | |
| 53 | — | W | World of Sharks | Save Our Seas Foundation | |
| 54 | — |  | The Orthobullets Podcast | Orthobullets | |
| 55 | — |  | Most Terrifying Places in America | Travel Channel | |
| 56 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 57 | — |  | Decouple | Dr. Chris Keefer | |
| 58 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 59 | 33 | T | The BIT podcast | The Behavioural Insights Team | |
| 60 | 33 | R | Reef in Focus | Great Barrier Reef Marine Park Authority | |
| 61 | — |  | The Biochar Podcast | ANZBIG | |
| 62 | 34 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 63 | — |  | Constant Wonder | BYUradio | |
| 64 | 22 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 65 | — | I | Inquiring Minds | Indre Viskontas | |
| 66 | — |  | Great Mysteries of Physics | The Conversation | |
| 67 | — | C | Cryptic Encounters | Cryptic County and Cloud10 | |
| 68 | — |  | When Science Finds a Way | Wellcome | |
| 69 | — | T | Talk of the Thames | Thames Estuary Partnership | |
| 70 | — | S | Science + God with Dr. G | AccessMore | |
| 71 | 36 |  | Every Animal Ever | Dr Cesar Puechmarin, Zach Mander | |
| 72 | 24 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 73 | 39 |  | Dope Labs | iHeartPodcasts | |
| 74 | 37 |  | The Michael Shermer Show | Michael Shermer | |
| 75 | 39 |  | The Science of Birds | Ivan Phillipsen | |
| 76 | 29 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 77 | 11 |  | Unexpected Elements | BBC World Service | |
| 78 | 27 |  | Science Quickly | Scientific American | |
| 79 | 39 |  | Origin Stories | The Leakey Foundation | |
| 80 | 42 |  | Bedrock: Earth's Earliest History | Dylan Wilmeth | |
| 81 | 29 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 82 | 38 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 83 | 38 |  | ScienceStuff | iHeartPodcasts | |
| 84 | 43 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 85 | 29 | S | Stable Science from Dr David Marlin's Animalweb | Dr David Marlin | |
| 86 | 37 | T | The Social Work Stories Podcast | The Social Work Stories Team | |
| 87 | 37 |  | The Jim Rutt Show | The Jim Rutt Show | |
| 88 | 34 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 89 | 27 | B | BJPsych Journals | BJPsych Journals | |
| 90 | 32 | 황 | 황상민의 심리상담소:황심소 | 황상민의 심리상담소,황상민 | |
| 91 | 36 | T | terrestrial | KUOW News and Information | |
| 92 | 35 | 科 | 科学史评话最新专辑 | 科学史评话 | |
| 93 | 69 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 94 | 35 | T | This Natural Life | BBC Radio 4 | |
| 95 | 35 | T | The Structural Engineering Podcast | Zach and Max | |
| 96 | 35 |  | This Week in Space (Video) | TWiT | |
| 97 | 34 | C | CHEST Journal Podcasts | American College of Chest Physicians | |
| 98 | 34 | I | Introduction To Marx/Marxsim | John Molyneux | |
| 99 | 34 | 科 | 科学星球 | BOX孙彬 | |
| 100 | 31 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
