| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 4 | 1 |  | Science Vs | Spotify Studios | |
| 4 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 2 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 4 | — | B | Boring History for Sleep | Velvet | |
| 5 | 1 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 6 | 15 |  | Science Quickly | Scientific American | |
| 6 | 6 |  | Unexplainable | Vox | |
| 7 | 109 |  | This Week in Cardiology | Medscape | |
| 7 | 3 | I | Ideas of India | Mercatus Center at George Mason University | |
| 8 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 8 | 1 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 9 | 2 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 10 | 2 |  | Overheard at National Geographic | National Geographic | |
| 10 | 75 |  | Origin Stories | The Leakey Foundation | |
| 13 | — |  | Short Wave | NPR | |
| 14 | 5 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 16 | 2 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 17 | 5 |  | CrowdScience | BBC World Service | |
| 18 | 75 |  | Oncology Today with Dr Neil Love | Dr. Neil Love | |
| 19 | 62 |  | Nature Podcast | Springer Nature Limited | |
| 19 | 4 | S | Sher Khan | Aaj Tak Radio | |
| 20 | 3 |  | Science Friday | Science Friday and WNYC Studios | |
| 20 | 1 |  | The Psychology Podcast | iHeartPodcasts | |
| 20 | 3 |  | The Quanta Podcast | Quanta Magazine | |
| 21 | 7 |  | Making Sense with Sam Harris | Sam Harris | |
| 22 | 4 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 22 | — |  | Lost Women of Science | Lost Women of Science | |
| 23 | 7 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 24 | 11 |  | Discovery | BBC World Service | |
| 24 | 7 |  | You Are Not So Smart | You Are Not So Smart | |
| 24 | 6 |  | Ask a Spaceman! | Paul M. Sutter | |
| 25 | 44 |  | More or Less | BBC Radio 4 | |
| 25 | 6 |  | EarthWise | Vivaan Mathur | |
| 25 | 10 |  | H2TechTalk | H2Tech | |
| 26 | 36 | G | Game Theory | Game Theory | |
| 27 | 11 |  | Speaking of Psychology | American Psychological Association | |
| 28 | 10 |  | Unexpected Elements | BBC World Service | |
| 28 | — |  | The Energy Podcast | Shell | |
| 29 | 46 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 29 | — |  | Manifold | Steve Hsu | |
| 30 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 30 | — | 6 | 60-Second Mind | Scientific American | |
| 30 | 12 |  | Hard Drugs | Saloni Dattani & Jacob Trefethen | |
| 31 | — | J | Journal of the American Academy of Child and Adolescent Psychiatry | American Academy of Child and Adolescent Psychiatry | |
| 32 | — | D | Daily Paper Cast | Jingwen Liang, Gengyu Wang | |
| 33 | 4 |  | Science In Action | BBC World Service | |
| 33 | — | M | Maths on the Move | plus.maths.org | |
| 34 | — | N | Nullius in Verba | Smriti Mehta and Daniël Lakens | |
| 35 | 9 |  | Science Weekly | The Guardian | |
| 36 | 11 |  | MinuteEarth | Minute Earth | |
| 36 | 144 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 36 | — |  | The Big Book Project | Atreyee Majumder and Bhavin Patel | |
| 37 | 137 |  | The world, the universe and us | New Scientist | |
| 37 | — | E | Earthy Girls is a Mother/Daughter Organic Duo who LOVE the Planet & All things Green. | Rebecca Behnke | |
| 38 | 6 |  | Completely Arbortrary | Completely Arbortrary | |
| 38 | 4 |  | Found in Space: A Science Podcast for Kids and Teens | Arwen Hubbard | |
| 39 | 18 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 40 | 22 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 40 | — | T | The Science of Personality Podcast | Hogan Assessments | |
| 41 | 3 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 42 | 10 |  | The Orthobullets Podcast | Orthobullets | |
| 42 | — | T | The Future of Pharma | Samir Gondalia, ISPE Boston | |
| 43 | 5 | P | PCICS Podcast | The Podcast for Pediatric Cardiac Critical Care | |
| 44 | 11 |  | Regenerative Agriculture Podcast | John Kempf | |
| 46 | 2 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 46 | — | B | Boston Computation Club | Max von Hippel | |
| 46 | — | T | The Fourth Dimension with Sanjay Rajoura | The Fourth Dimension | |
| 47 | 12 | ग | गोष्ट दुनियेची | BBC Marathi Audio | |
| 48 | 18 | Q | Quantum Physics for Kids | Subatomic Tanvi | |
| 49 | 20 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 49 | 13 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 50 | 19 |  | Naturebang | BBC Radio 4 | |
| 51 | 23 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 52 | 11 | 6 | 60-Second Tech | Scientific American | |
| 53 | 4 |  | Babbage from The Economist | The Economist | |
| 53 | 6 | P | PeerView Oncology & Hematology CME/CNE/CPE Video Podcast | PVI, PeerView Institute for Medical Education | |
| 54 | 10 | # | #ShareScience - an InsideScientific Podcast | InsideScientific | |
| 55 | 29 |  | TED Talks Science and Medicine | TED | |
| 55 | 25 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 57 | 24 |  | The Astrophysics Podcast | Paul Duffell | |
| 58 | 9 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 59 | 4 |  | Universe Today Podcast | Fraser Cain | |
| 62 | 30 |  | The Sociology of Everything Podcast | Eric Hsu & Louis Everuss (Lou & the Hsu) | |
| 62 | — | 泛 | 泛泛泛科學之思想實驗室 | PanSci | |
| 63 | 18 |  | The Life Scientific | BBC Radio 4 | |
| 63 | 22 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 64 | 30 |  | BrainStuff | iHeartPodcasts | |
| 65 | 8 | M | Molecule to Market: Inside the outsourcing space | Raman Sehgal | |
| 66 | 11 |  | Robinson's Podcast | Robinson Erhardt | |
| 66 | 14 |  | Drilled | Pushkin Industries | |
| 67 | 6 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 68 | 3 |  | SciShow Tangents | Complexly | |
| 69 | 27 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 73 | 27 |  | All In The Mind | ABC | |
| 73 | 34 |  | The 365 Days of Astronomy | 365DaysOfAstronomy.org | |
| 76 | 11 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 76 | 32 | P | PharmaSource Podcast | Life Science Networks | |
