| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 1 |  | Radiolab | WNYC Studios | |
| 4 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 5 | 1 |  | Curious Cases | BBC Radio 4 | |
| 6 | 7 |  | Science Vs | Spotify Studios | |
| 7 | 2 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 8 | 4 |  | More or Less | BBC Radio 4 | |
| 9 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 10 | 1 |  | Unexplainable | Vox | |
| 11 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 12 | 5 |  | Alive Again | iHeartPodcasts | |
| 13 | 92 |  | Robinson's Podcast | Robinson Erhardt | |
| 14 | 4 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 15 | 50 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 16 | — |  | Speed & Scale | TED | |
| 17 | 3 |  | Science Weekly | The Guardian | |
| 18 | 49 |  | Blurry Creatures | Blurry Creatures | |
| 19 | 30 |  | Naturebang | BBC Radio 4 | |
| 20 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 21 | 21 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 22 | 32 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 23 | 5 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 24 | 7 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 25 | 75 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 26 | 35 | S | Students of Surgery | Martin Brand | |
| 27 | 96 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 28 | 29 |  | Bigfoot Society | Jeremiah Byron | |
| 29 | 57 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 30 | 149 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 31 | — |  | Mongabay Newscast | Mongabay.com | |
| 32 | 64 |  | Discovery | BBC World Service | |
| 33 | 104 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 34 | 97 |  | When Science Finds a Way | Wellcome | |
| 35 | 1 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 36 | — |  | Overheard at National Geographic | National Geographic | |
| 37 | 21 |  | The Psychology Podcast | iHeartPodcasts | |
| 38 | 120 | T | The Engineering Passion Express | Brandon Donnelly | |
| 39 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 40 | 132 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 41 | 26 |  | Living Planet | DW | |
| 42 | — |  | How Wild | NPR | |
| 43 | — |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 44 | — |  | "Lecture-casts"- A Lecture Series on General Chemistry | Mr. David Joshua Ferguson, MRSB MRSC | |
| 45 | — | S | Silicon Valley Astronomy Lectures | Silicon Valley Astronomy Lectures | |
| 46 | 23 |  | The Michael Shermer Show | Michael Shermer | |
| 47 | 28 |  | ScienceStuff | iHeartPodcasts | |
| 48 | 14 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 49 | 20 | P | Parrot Stars Podcast | Parrot Stars | |
| 50 | 28 |  | Short Wave | NPR | |
| 51 | 14 |  | The Quanta Podcast | Quanta Magazine | |
| 52 | 31 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 53 | 26 |  | Need To Know | Bryce Zabel | |
| 54 | 11 |  | All In The Mind | ABC | |
| 55 | 30 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 56 | 32 |  | Regenerative Agriculture Podcast | John Kempf | |
| 57 | 31 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 58 | 19 |  | CrowdScience | BBC World Service | |
| 59 | 27 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 60 | 15 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 61 | 33 | T | The Immaculate Deception | Somethin' Else / Sony Music Entertainment | |
| 62 | 29 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 63 | 33 | T | The Show About Science | Nate | The Company Making Podcasts | |
| 64 | 29 |  | Speaking of Psychology | American Psychological Association | |
| 65 | 15 |  | The world, the universe and us | New Scientist | |
| 66 | 8 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 67 | 36 |  | The Science of Birds | Ivan Phillipsen | |
| 68 | 12 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 69 | 26 |  | Science Friday | Science Friday and WNYC Studios | |
| 70 | 37 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 71 | 2 |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 72 | — |  | Total Disclosure Podcast | Tyler Roberts | |
| 73 | 33 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 74 | 33 |  | BBC Inside Science | BBC Radio 4 | |
| 75 | 3 |  | Invisibilia | NPR | |
| 76 | 16 |  | This Week in Cardiology | Medscape | |
| 77 | 30 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 78 | 16 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 79 | 35 | T | Talks On Psychoanalysis | International Psychoanalytical Association | |
| 80 | 90 |  | Science Magazine Podcast | Science Magazine | |
| 81 | 105 | W | Wildest Kruger Stories | Karolina Norée | |
| 82 | 44 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 83 | 28 |  | That UFO Podcast | That UFO Podcast | |
| 84 | 5 |  | Nature Podcast | Springer Nature Limited | |
| 85 | 39 | T | The Modern learner | Sage Tech | |
| 86 | 38 |  | The Vatican Observatory Podcast | Vatican Observatory | |
| 87 | 35 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 88 | 35 |  | Going Wild with Dr. Rae Wynn-Grant | PBS Nature | |
| 89 | 38 |  | Science In Action | BBC World Service | |
| 90 | 91 |  | MinuteEarth | Minute Earth | |
| 91 | — |  | Instant Genius | Our Media | |
| 92 | 40 |  | Mysterious Universe | 8th Kind | |
| 93 | 34 |  | A Life More Wild | Canopy & Stars | |
| 94 | 86 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 95 | 18 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 96 | 40 | W | What The Duck?! | ABC | |
| 97 | 16 | A | AfroPop Music 4 D Soul | BlackBoiAmazing | |
| 98 | 22 | B | BJA Education Podcasts | BJA Education | |
| 99 | 33 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 100 | 33 | A | Ask the Naked Scientists | Dr Chris Smith | |
