| 1 | — |  | Radiolab | WNYC Studios | |
| 2 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | 2 |  | Curious Cases | BBC Radio 4 | |
| 5 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 1 |  | Science Weekly | The Guardian | |
| 7 | 2 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 8 | 3 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 9 | 5 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 10 | — |  | More or Less | BBC Radio 4 | |
| 11 | 17 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 12 | 43 |  | The Psychology Podcast | iHeartPodcasts | |
| 13 | 10 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 14 | 2 | W | Why? with Emma Kennedy | Podmasters | |
| 15 | 17 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 16 | 15 | C | CountryWide | RTÉ Radio 1 | |
| 17 | 9 |  | Making Sense with Sam Harris | Sam Harris | |
| 18 | 3 |  | The world, the universe and us | New Scientist | |
| 19 | 5 |  | BBC Inside Science | BBC Radio 4 | |
| 20 | 2 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 21 | 13 |  | Ologies with Alie Ward | Alie Ward | |
| 22 | 68 |  | Infectious Disease Puscast | Vincent Racaniello | |
| 23 | — | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 24 | 11 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 25 | 17 |  | A Life More Wild | Canopy & Stars | |
| 26 | 13 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 27 | 5 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 28 | 12 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 29 | 39 |  | Discovery | BBC World Service | |
| 30 | 5 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 31 | — |  | In Defense of Plants Podcast | In Defense of Plants | |
| 32 | 39 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 33 | 6 |  | Disclosure Team | Disclosure Team | |
| 34 | 12 |  | Science In Action | BBC World Service | |
| 35 | 114 |  | The Plodcast | Our Media | |
| 36 | 15 |  | Overheard at National Geographic | National Geographic | |
| 37 | 71 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 38 | 19 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 39 | 15 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 40 | 71 | ' | 'Mind the Kids': an ACAMH podcast | The Association for Child and Adolescent Mental Health | |
| 41 | 21 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 42 | — | E | Elemental | RNZ | |
| 43 | 13 |  | That UFO Podcast | That UFO Podcast | |
| 44 | 11 |  | Unexplainable | Vox | |
| 45 | 83 |  | Speaking of Psychology | American Psychological Association | |
| 46 | — |  | ESICM Talk | ESICM | |
| 47 | — |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 48 | — | T | The Signpost Series | Teagasc | |
| 49 | 30 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 50 | 21 |  | The Michael Shermer Show | Michael Shermer | |
| 51 | — |  | Nice Genes! | Genome BC | |
| 52 | — |  | The Medbullets Step 1 Podcast | Medbullets | |
| 53 | — |  | 现代自然地理学《重点笔记》 | 白纸工作室 | |
| 54 | — |  | Tiny Matters | Multitude | |
| 55 | — |  | Scott Carney Investigates | Scott Carney | |
| 56 | — |  | Let's Learn Everything! | Maximum Fun | |
| 57 | — | W | White Coat, Black Art | CBC | |
| 58 | — | P | Physics | Yale University | |
| 59 | — |  | The Science of Everything Podcast | James Fodor | |
| 60 | — | E | Endocrine Feedback Loop | Endocrine Society | |
| 61 | 26 |  | Science Vs | Spotify Studios | |
| 62 | — |  | TED Talks Science and Medicine | TED | |
| 63 | — |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 64 | — |  | For What It’s Earth | Emma Brisdion & Sophie Pavelle | |
| 65 | — |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 66 | — | W | Waterlands | Wildfowl & Wetlands Trust | |
| 67 | — | T | The Human Subject | BBC Radio 4 | |
| 68 | 42 |  | Diet Doctor Podcast | dietdoctorpodcast | |
| 69 | — | B | Brain Matters | Brain Matters Neuroscience | |
| 70 | — |  | The Medbullets Step 2 & 3 Podcast | Medbullets | |
| 71 | — | J | JurisDictions: International law podcast | T.M.C. Asser Instituut | |
| 72 | — | F | From the Roots | Orla ní Dhúill | |
| 73 | — | A | AP Cardiology | Andrew Perry | |
| 74 | 27 |  | CrowdScience | BBC World Service | |
| 75 | 58 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 76 | 40 |  | Podcast UFO | Martin Willis | |
| 77 | 34 |  | Nature Podcast | Springer Nature Limited | |
| 78 | 41 |  | The Life Scientific | BBC Radio 4 | |
| 79 | 38 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 80 | 3 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 81 | 41 |  | This Week in Space (Audio) | TWiT | |
| 82 | 34 | N | New Scientist Weekly | New Scientist | |
| 83 | 41 |  | Somewhere in the Skies | SpectreVision Radio | |
| 84 | 18 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 85 | 11 |  | All In The Mind | ABC | |
| 86 | 21 |  | Mysterious Universe | 8th Kind | |
| 87 | 49 | C | Climate Change on Trial | Unreported Story Society | |
| 88 | 43 |  | Ciência Suja | Ciência Suja | |
| 89 | 45 | ![Cosmosis [Formerly The UFO Rabbit Hole]](https://is1-ssl.mzstatic.com/image/thumb/Podcasts211/v4/6e/50/4f/6e504f3a-5967-0f9a-1858-77a5f070b7d4/mza_10360255510263335732.jpeg/100x100bb.jpg) | Cosmosis [Formerly The UFO Rabbit Hole] | Kelly Chase & Jay Christopher King | |
| 90 | 14 |  | Science Friday | Science Friday and WNYC Studios | |
| 91 | 10 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 92 | 9 |  | Universe Today Podcast | Fraser Cain | |
| 93 | 32 |  | Geology Bites | Oliver Strimpel | |
| 94 | 46 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 95 | 46 |  | How We're Wired | The Bertarelli Foundation | |
| 96 | 24 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 97 | — | T | The Organic Grower Podcast | Organic Growers Alliance | |
| 98 | 28 |  | Unexpected Elements | BBC World Service | |
| 99 | 49 |  | Cosmos In You - Guide to Inner Space | Suzannah Scully | |
| 100 | 49 | B | Best Medicine | BBC Radio 4 | |
