| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | — |  | Unexplainable | Vox | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 5 | — |  | Science Vs | Spotify Studios | |
| 6 | 1 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 7 | 1 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 8 | 4 |  | The Psychology Podcast | iHeartPodcasts | |
| 9 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 10 | 6 |  | You Are Not So Smart | You Are Not So Smart | |
| 11 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 12 | 8 | I | Ideas of India | Mercatus Center at George Mason University | |
| 13 | 1 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 14 | 3 |  | Speaking of Psychology | American Psychological Association | |
| 15 | 17 |  | The Quanta Podcast | Quanta Magazine | |
| 16 | 1 |  | Science Weekly | The Guardian | |
| 17 | — |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 18 | 19 | B | Boring History for Sleep | Velvet | |
| 19 | 10 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 20 | 7 |  | Astrum Space | Astrum | |
| 21 | 1 |  | Short Wave | NPR | |
| 22 | 38 | P | Physics World Stories Podcast | Physics World | |
| 23 | 50 |  | Rare Earth | BBC Radio 4 | |
| 24 | 7 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 25 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 26 | 40 | P | Psychology | Yale School of Medicine | |
| 27 | 25 |  | The Episodic Table of Elements | T. R. Appleton | |
| 28 | 6 | S | Sher Khan | Aaj Tak Radio | |
| 29 | 16 |  | Babbage from The Economist | The Economist | |
| 30 | — |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 31 | 117 |  | Science In Action | BBC World Service | |
| 32 | 103 |  | Nature Podcast | Springer Nature Limited | |
| 33 | 3 | T | The Think Wildlife Podcast | The Think Wildlife Podcast | |
| 34 | 161 |  | Unexpected Elements | BBC World Service | |
| 35 | 88 |  | The Life Scientific | BBC Radio 4 | |
| 36 | 5 |  | Living Planet | DW | |
| 37 | 155 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 38 | 15 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 39 | 19 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 40 | 19 |  | Oncology Today with Dr Neil Love | Dr. Neil Love | |
| 41 | 71 |  | The History of Chemistry | Steve Cohen | |
| 42 | 24 |  | Overheard at National Geographic | National Geographic | |
| 43 | 15 |  | Science Friday | Science Friday and WNYC Studios | |
| 44 | 62 |  | Materialism: A Materials Science Podcast | Taylor Sparks and Andrew Falkowski | |
| 45 | 140 |  | BBC Inside Science | BBC Radio 4 | |
| 46 | 59 |  | The Hydrogen Podcast | Paul Rodden | |
| 47 | 10 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 48 | 29 | L | Lung Cancer Considered | IASLC | |
| 49 | — | L | La planète des sciences | France Inter | |
| 50 | 99 |  | MinuteEarth | Minute Earth | |
| 51 | 141 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 52 | 62 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 53 | 139 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 54 | 30 |  | All In The Mind | ABC | |
| 55 | 20 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 56 | 118 |  | Instant Genius | Our Media | |
| 57 | 97 |  | Science Magazine Podcast | Science Magazine | |
| 58 | — |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 59 | 30 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 60 | 92 |  | Physics World Weekly Podcast | Physics World | |
| 61 | 123 |  | More or Less | BBC Radio 4 | |
| 62 | 37 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 63 | 109 |  | Robinson's Podcast | Robinson Erhardt | |
| 64 | — |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 65 | 131 |  | The 365 Days of Astronomy | 365DaysOfAstronomy.org | |
| 66 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 67 | — |  | Lost Women of Science | Lost Women of Science | |
| 68 | — |  | Universe Today Podcast | Fraser Cain | |
| 69 | — |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 70 | 127 |  | Почему мы еще живы | libo/libo | |
| 71 | — |  | Climate One | Climate One from The Commonwealth Club | |
| 72 | — | U | Under the Cortex | psychologicalscience | |
| 73 | — | S | Space | BBC World Service | |
| 74 | — |  | Science Talk | Scientific American | |
| 75 | — | Q | Quantum | Equipo 10 | |
| 76 | — |  | Hard Drugs | Saloni Dattani & Jacob Trefethen | |
| 77 | — |  | It's a Material World | Materials Science Podcast | Punith Upadhya and David Yeh | |
| 78 | — |  | La Science, CQFD | France Culture | |
| 79 | — |  | Chemistry in its element | Chemistry World | |
| 80 | — | M | Modern Physics: The Theoretical Minimum - Quantum Mechanics | Stanford Continuing Studies Program | |
| 81 | — | T | Technology and the Mind | Dr. Nicolle Zapien | |
| 82 | — | E | Eurêka ! | France Culture | |
| 83 | — |  | Behavior Bitches | Study Notes ABA, LLC | |
| 84 | 51 |  | Discovery | BBC World Service | |
| 85 | 59 |  | The world, the universe and us | New Scientist | |
| 86 | 9 |  | Bedtime Astronomy | Synthetic Universe | |
| 87 | 89 |  | Curiosity Weekly | Discovery | |
| 88 | 98 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 89 | — |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 90 | 17 |  | Science Quickly | Scientific American | |
| 91 | 29 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 92 | 54 |  | The Alpha Male Coach Podcast | Kevin Aillaud | |
| 93 | 54 |  | Talking Points | TCTMD | |
| 94 | — | R | Ri Science Podcast | The Royal Institution | |
| 95 | 40 |  | The Future of Everything | Stanford Engineering | |
| 96 | 56 |  | The Couples Therapist Couch | Shane Birkel | |
| 97 | 55 | Q | Quantum Physics for Kids | Subatomic Tanvi | |
| 98 | — |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 99 | 56 | M | MinutePhysics | Neptune Studios | |
| 100 | 56 |  | Dharma Lab | Dharma Lab | |
