| 1 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 57 |  | Speaking of Psychology | American Psychological Association | |
| 3 | 165 |  | Quarks Daily | Quarks | |
| 4 | 52 | B | Boring History for Sleep | Velvet | |
| 5 | 14 |  | Radiolab | WNYC Studios | |
| 6 | 6 |  | More or Less | BBC Radio 4 | |
| 7 | 3 |  | The Rest Is Science | Goalhanger | |
| 8 | 7 |  | The Alpha Male Coach Podcast | Kevin Aillaud | |
| 9 | 12 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 5 | N | NESG Radio | The Nigerian Economic Summit Group | |
| 11 | — |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 12 | 10 |  | Talking Geosciences | University of Aberdeen | |
| 13 | 42 |  | Astrum Space | Astrum | |
| 14 | 174 | T | The Criminology Academy | Jose Sanchez and Jenn Tostlebe | |
| 15 | — |  | The Mineral Rights Podcast: Mineral Rights | Royalties | Oil and Gas | Matt Sands | Matt Sands | |
| 16 | 15 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 17 | 69 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 18 | 6 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 19 | 13 | J | Jahbless Original Intelligence | JahblessOriginalIntelligence | |
| 20 | 24 |  | Instant Genius | Our Media | |
| 21 | 14 |  | CrowdScience | BBC World Service | |
| 22 | 14 |  | Stanford Medcast: Expert Voices in Medicine and Healthcare | Stanford University School of Medicine | |
| 23 | 14 |  | The Climate Question | BBC World Service | |
| 24 | 14 |  | Rare Earth | BBC Radio 4 | |
| 25 | 14 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 26 | 51 |  | Making Sense with Sam Harris | Sam Harris | |
| 27 | 18 |  | God's Eye View | Trevor | |
| 28 | 88 |  | Let's Learn Everything! | Maximum Fun | |
| 29 | 70 | S | Shots of Science Vs | Spotify Studios | |
| 30 | 121 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 31 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 32 | 7 |  | Discovery | BBC World Service | |
| 33 | 2 | M | Medical Biochemistry | Ling Hwang | |
| 34 | 25 | G | Geography Fun Podcast | Geography Fun | |
| 35 | 25 | T | The Fisheries Podcast | A team of fisheries scientists | |
| 36 | 91 |  | BBC Inside Science | BBC Radio 4 | |
| 37 | 32 |  | Science Vs | Spotify Studios | |
| 38 | 69 |  | The Life Scientific | BBC Radio 4 | |
| 39 | — |  | Google DeepMind: The Podcast | Hannah Fry | |
| 40 | — | S | Solar Maverick Podcast | Benoy Thanjan | |
| 41 | 2 | P | playing god? | Johns Hopkins Berman Institute of Bioethics | |
| 42 | 28 |  | Science Weekly | The Guardian | |
| 43 | 45 | C | Choses à Savoir SCIENCES | Choses à Savoir | |
| 44 | 18 |  | Babbage from The Economist | The Economist | |
| 45 | 69 |  | Chemistry Made Simple | Matthew Macariou | |
| 46 | 21 |  | The Medbullets Step 1 Podcast | Medbullets | |
| 47 | 31 |  | AMiNDR: A Month in Neurodegenerative Disease Research | The AMiNDR Team | |
| 48 | 30 | H | Human Behavioral Biology | Robert Sapolsky | |
| 49 | 30 | I | Imperial College Podcast | Imperial College London | |
| 50 | 33 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 51 | 38 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 52 | 32 | A | ADPlusHausa | Podcast | ADPlusHausa | Podcast | |
| 53 | 24 |  | Ask a Spaceman! | Paul M. Sutter | |
| 54 | 93 |  | La Conversation scientifique | France Culture | |
| 55 | 33 |  | Curious Cases | BBC Radio 4 | |
| 56 | 20 |  | Ancient Aliens | PodcastOne | |
| 57 | 41 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 58 | 40 | T | The Andrea Mitchell Center Podcast | Matthew Roth | |
| 59 | 26 |  | The Michael Shermer Show | Michael Shermer | |
| 60 | 33 |  | Physics World Weekly Podcast | Physics World | |
| 61 | 33 | P | Physics Chemistry Math 🔥❤️ | Sumit Sahu | |
| 62 | 39 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 63 | 2 |  | Overheard at National Geographic | National Geographic | |
| 64 | 33 |  | Vision Crossroads - feat. Rev. Leonidas The Optometrist Phenomenal VIP Program | Leonidas Johnson | |
| 65 | 11 |  | 跨国串门儿计划 | yikai | |
| 66 | — | B | Beach Sounds | BeachSounds.com | |
| 67 | — | P | Photosynthesis | Dr. DINTU K P | |
| 68 | 36 |  | Unexplainable | Vox | |
| 69 | — |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 70 | 32 |  | Livestock Community Podcast | JEFO | |
| 71 | 32 |  | Science Friday | Science Friday and WNYC Studios | |
| 72 | 32 |  | RCPCH Podcasts | Royal College of Paediatrics and Child Health | |
| 73 | 32 |  | NASA's Touch the Invisible Sky Audio Podcasts | NASA/Chandra X-ray Center | |
| 74 | 32 | N | NASA ScienceCasts | NASA Science | |
| 75 | 15 |  | Choses à Savoir CERVEAU | Choses à Savoir | |
| 76 | 42 |  | All In The Mind | ABC | |
| 77 | 40 | C | Choses à Savoir PLANETE | Choses à Savoir | |
| 78 | 20 |  | The Psychology Podcast | iHeartPodcasts | |
| 79 | 52 | W | Who Moved the Tortoise? | Mindless Wittering | |
| 80 | 45 |  | IronRingGirls Podcast | IronRingGirls | |
| 81 | 12 | T | The Dairy Nutrition Blackbelt Podcast | Wisenetix | |
| 82 | 35 | T | The Social Work Stories Podcast | The Social Work Stories Team | |
| 83 | 34 |  | The Orthobullets Podcast | Orthobullets | |
| 84 | 57 |  | Intelligent Design the Future | Discovery Institute | |
| 85 | 18 |  | Short Wave | NPR | |
| 86 | 37 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 87 | 34 |  | The Green Room: A Podcast from Obstetrics & Gynecology | Obstetrics & Gynecology (Green Journal) | |
| 88 | 42 | T | The HemOnc Pulse | Rahul Banerjee, MD | |
| 89 | 41 | T | The Thought Atlas Podcast | Blisado | |
| 90 | 39 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 91 | 41 |  | You Are Not So Smart | You Are Not So Smart | |
| 92 | 40 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 93 | 39 | T | TSRA Podcast | TSRA | |
| 94 | 50 |  | Bionic Planet: Reversing Climate Change by Restoring Nature | Steve Zwick | |
| 95 | 18 |  | Planet Em | Emily McDonald | |
| 96 | 39 |  | Get Obsessed : With Living Your Best Life | Julie Lokun and Mika Altidor | |
| 97 | 69 |  | Unexpected Elements | BBC World Service | |
| 98 | 98 | T | The Genetics Podcast | Sano Genetics | |
| 99 | 41 | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 100 | 40 |  | Blurry Creatures | Blurry Creatures | |
