| 1 | 6 |  | Curious Cases | BBC Radio 4 | |
| 2 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | — |  | Radiolab | WNYC Studios | |
| 6 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 4 |  | Science Weekly | The Guardian | |
| 8 | 11 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 9 | 1 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 10 | 12 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 11 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 12 | 17 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 13 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 14 | 6 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 15 | 4 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | — |  | Podcast UFO | Martin Willis | |
| 17 | 2 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 18 | 10 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 19 | 7 |  | The Quanta Podcast | Quanta Magazine | |
| 20 | 6 |  | The world, the universe and us | New Scientist | |
| 21 | 65 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 22 | 9 |  | More or Less | BBC Radio 4 | |
| 23 | 116 |  | The Michael Shermer Show | Michael Shermer | |
| 24 | 3 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 25 | 7 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 26 | 10 | E | Ecolution | RTÉ Kids | |
| 27 | 10 |  | The Couples Therapist Couch | Shane Birkel | |
| 28 | 4 |  | That UFO Podcast | That UFO Podcast | |
| 29 | 135 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 30 | — | T | The Social Work Stories Podcast | The Social Work Stories Team | |
| 31 | — |  | The Life Scientific | BBC Radio 4 | |
| 32 | 167 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 33 | 114 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 34 | 104 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 35 | 127 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 36 | 158 | S | Sci Guys | The Sci Guys | |
| 37 | — |  | Star Diary | BBC Sky at Night Magazine | |
| 38 | 133 | W | White Coat, Black Art | CBC | |
| 39 | — |  | Osterholm Update | CIDRAP | |
| 40 | — | P | Podcast de Juan Ramón Rallo | Juan Ramón Rallo | |
| 41 | — | W | What about us? Cultural Awareness in Clinical Psychology | WhatAboutUs | |
| 42 | — | L | Learning by William | William Gottemoller | |
| 43 | — |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 44 | — |  | Science History Podcast | Frank A. von Hippel | |
| 45 | — |  | Geographers without Borders | Women in GIS | |
| 46 | — | I | Insects for Fun! | insectsforfun | |
| 47 | — |  | Geographical Thinking from Esri Canada | Esri Canada | |
| 48 | — | L | Learn about FREE Energy | John Clarkson | |
| 49 | 26 |  | Speaking of Psychology | American Psychological Association | |
| 50 | 28 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 51 | 20 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 52 | 26 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 53 | 28 |  | Overheard at National Geographic | National Geographic | |
| 54 | 22 |  | CrowdScience | BBC World Service | |
| 55 | 28 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 56 | 23 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 57 | 2 |  | Universe Today Podcast | Fraser Cain | |
| 58 | 22 |  | You Are Not So Smart | You Are Not So Smart | |
| 59 | 25 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 60 | 25 | N | New Scientist Weekly | New Scientist | |
| 61 | 17 |  | New Books in Critical Theory | Marshall Poe | |
| 62 | 15 | S | Science Маянс Podcast | Podcast Solutions Studio | |
| 63 | 33 |  | Discovery | BBC World Service | |
| 64 | 27 | B | Beyond Compliance: In Conversation | Beyond Compliance | |
| 65 | 23 | F | Feet on the Soil | Soil Boy | |
| 66 | 28 |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 67 | 28 |  | Quirks and Quarks | CBC | |
| 68 | 15 | C | CrowdScience | BBC World Service | |
| 69 | 29 |  | The Orthobullets Podcast | Orthobullets | |
| 70 | 43 |  | Sasquatch Odyssey | Sasquatch Odyssey-Bigfoot Encounters | |
| 71 | 30 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 72 | 29 | T | Talking Humanitarianism | Norwegian Centre for Humanitarian Studies | |
| 73 | 28 | B | Bad Zoology | Bad Zoology | |
| 74 | 28 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 75 | 27 |  | The Clean Energy Revolution | National Grid | |
| 76 | 27 | N | National Geographic Magazine | Radio Eye | |
| 77 | 27 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 78 | 27 |  | Altered States | PRX | |
| 79 | 27 | S | Specimens | Elle Kaye | |
| 80 | 26 | T | The Artificial Human | BBC Radio 4 | |
| 81 | 26 |  | Naturebang | BBC Radio 4 | |
| 82 | 13 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 83 | 20 |  | A Life More Wild | Canopy & Stars | |
| 84 | 26 |  | Why Do We Do That? | BBC Radio 4 | |
| 85 | 28 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 86 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 87 | 31 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 88 | 26 |  | Accidental Gods | Accidental Gods | |
| 89 | 13 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 90 | 15 |  | Science Friday | Science Friday and WNYC Studios | |
| 91 | 2 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 92 | 51 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 93 | 32 |  | SciShow Tangents | Complexly | |
| 94 | 34 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 95 | 11 |  | Paranormal Portal | Brent Thomas | |
| 96 | 32 |  | Great Mysteries of Physics | The Conversation | |
| 97 | 16 |  | Short Wave | NPR | |
| 98 | 31 |  | Night Science | Itai Yanai & Martin Lercher | |
| 99 | 34 |  | Unravelling the Universe℠ | Ben (host) and Harmonie (behind the scenes) | |
| 100 | 34 |  | Ciência Suja | Ciência Suja | |
