| 1 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | The Rest Is Science | Goalhanger | |
| 3 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 5 | — |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 6 | 32 |  | Ideas of India | Mercatus Center at George Mason University | |
| 7 | 1 |  | Unexplainable | Vox | |
| 8 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 9 | 10 |  | Astrum Space | Astrum | |
| 10 | 6 |  | Science Vs | Spotify Studios | |
| 11 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 12 | 3 |  | Boring History for Sleep | Velvet | |
| 13 | 2 |  | Babbage from The Economist | The Economist | |
| 14 | 7 |  | Nature Podcast | Springer Nature Limited | |
| 15 | 8 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 16 | 2 |  | Planet Em | Emily McDonald | |
| 17 | 12 |  | New Books in Political Science | New Books Network | |
| 18 | 4 |  | Science Weekly | The Guardian | |
| 19 | 6 |  | EarthWise | Vivaan Mathur | |
| 20 | 3 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 21 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 22 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 23 | 1 |  | Speaking of Psychology | American Psychological Association | |
| 24 | 70 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 25 | 12 |  | The Quanta Podcast | Quanta Magazine | |
| 26 | 24 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 27 | 86 |  | This Week in Virology | Vincent Racaniello | |
| 28 | 13 |  | The Cognition Project | Tom Griffiths | |
| 29 | 2 |  | Science Friday | Science Friday and WNYC Studios | |
| 30 | 14 |  | This Week in Cardiology | Medscape | |
| 31 | 11 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 32 | 6 |  | Overheard at National Geographic | National Geographic | |
| 33 | 1 |  | CrowdScience | BBC World Service | |
| 34 | 24 |  | Short Wave | NPR | |
| 35 | 1 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 36 | — |  | Science Quickly | Scientific American | |
| 37 | 115 |  | The Immunology Podcast | The Immunology Podcast | |
| 38 | 19 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 39 | 50 |  | Breast Cancer Update | Dr. Neil Love | |
| 40 | 3 |  | Sher Khan | Aaj Tak Radio | |
| 41 | 11 |  | The Astrophysics Podcast | Paul Duffell | |
| 42 | 5 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 43 | — |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 44 | 62 |  | The world, the universe and us | New Scientist | |
| 45 | 48 |  | Blood Podcast | American Society of Hematology | |
| 46 | 11 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 47 | 134 |  | Board Rounds Prep for USMLE and COMLEX | Ryan Gray | |
| 48 | 36 |  | Hematologic Oncology Update | Dr. Neil Love | |
| 49 | 124 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 50 | 17 |  | Unlocking Behaviour Change | Robert West | |
| 51 | 136 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 52 | 7 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 53 | 140 |  | The Physio Matters Podcast | Jack Chew | |
| 54 | 38 |  | Sternengeschichten | Florian Freistetter | |
| 55 | 108 |  | Materialism: A Materials Science Podcast | Taylor Sparks and Andrew Falkowski | |
| 56 | 4 |  | All In The Mind | ABC | |
| 57 | 8 |  | The Psychology Podcast | iHeartPodcasts | |
| 58 | 12 |  | Let's Learn Everything! | Maximum Fun | |
| 59 | 18 |  | More or Less | BBC Radio 4 | |
| 60 | 15 |  | The Michael Shermer Show | Michael Shermer | |
| 61 | 5 |  | Pratidhvani - Humanizing Science | G V Pavan Kumar | |
| 62 | 23 |  | Discovery | BBC World Service | |
| 63 | 27 |  | You Are Not So Smart | You Are Not So Smart | |
| 64 | 36 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 65 | — |  | Thoughtforms Life | Michael Levin | |
| 66 | — |  | Oral-Maxillofacial Surgery Insights | Bruce A. Huberman DMD | |
| 67 | — |  | Sixième Science | 20 Minutes | |
| 68 | — |  | Podcast Science | Podcast Science | |
| 69 | — |  | It’s a Math Math Math World with Divakaran and Shraddha | Radio Azim Premji University | |
| 70 | — |  | The Struggling Scientists | Suzanne and Jayron | |
| 71 | — |  | Just the Zoo of Us | Ellen & Christian Weatherford | |
| 72 | 44 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 73 | 33 |  | Curiosity Weekly | Discovery | |
| 74 | — |  | The Meaning of Trees Podcast | Tom Hill | |
| 75 | 29 |  | The Cartesian Cafe | Timothy Nguyen | |
| 76 | 22 |  | Voices of Mathematics | Mathematics Faculty, University of Cambridge | |
| 77 | 35 |  | Instant Genius | Our Media | |
| 78 | 31 |  | My Favorite Theorem | Kevin Knudson & Evelyn Lamb | |
| 79 | 17 |  | SciShow Tangents | Complexly | |
| 80 | 88 |  | Bedtime Astronomy | Synthetic Universe | |
| 81 | 17 |  | The Orthobullets Podcast | Orthobullets | |
| 82 | 102 |  | NASA ScienceCasts | NASA Science | |
| 83 | 19 |  | In Pursuit of Development | Dan Banik | |
| 84 | 11 |  | Diet Doctor Podcast | dietdoctorpodcast | |
| 85 | 70 |  | Unexpected Elements | BBC World Service | |
| 86 | 51 |  | The Climate Question | BBC World Service | |
| 87 | 38 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 88 | 15 |  | MinuteEarth | Minute Earth | |
| 89 | 38 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 90 | 42 |  | ELI5 Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcast | ELI5 Explain Like I'm Five Podcast | |
| 91 | — |  | Economics In Ten | Economics In Ten | |
| 92 | — |  | Many Minds | Kensy Cooperrider – Diverse Intelligences Summer Institute | |
| 93 | 28 |  | The OTA Podcast | OTA Podcast Committee | |
| 94 | 16 |  | New Books in Law | New Books Network | |
| 95 | 40 |  | Geoeconomic Competition | Francesca Ghiretti | |
| 96 | 20 |  | Tomorrow's Cure | Mayo Clinic | |
| 97 | — |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 98 | 45 |  | 絮言．狂想 seoijin | 以色列、三苗、靳尼 | |
| 99 | 58 |  | Emergency Medicine Clinics (Elsevier) | Emergency Medicine Clinics | |
| 100 | 37 |  | SEA: Space Exploration & Astronomy | SEA | |
