| 1 | 1 |  | Unexplainable | Vox | |
| 1 | 84 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 1 | — |  | Radiolab | WNYC Studios | |
| 2 | — | H | Heal NPD | Mark Ettensohn, Psy.D. | |
| 3 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 3 | 42 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 4 | 3 | B | Boring History for Sleep | Velvet | |
| 4 | 34 |  | Podcast UFO | Martin Willis | |
| 5 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 4 |  | The Rest Is Science | Goalhanger | |
| 7 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 8 | 3 |  | Science Will Win | Pfizer | |
| 9 | 24 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 9 | 1 |  | Koldfronten - kampen om Grønland og Arktis | Videnskab.dk | |
| 10 | 1 |  | Nature Podcast | Springer Nature Limited | |
| 10 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 11 | 1 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 13 | — |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 14 | 1 |  | More or Less | BBC Radio 4 | |
| 15 | 3 |  | Dharma Lab | Dharma Lab | |
| 15 | 172 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 16 | 10 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 17 | 3 | W | Walkabout the Galaxy | Joshua Colwell, Adrienne Dove, and James Cooney | |
| 18 | 1 |  | Big Picture Science | Big Picture Science | |
| 19 | 12 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 20 | 11 |  | Science Weekly | The Guardian | |
| 20 | 12 |  | Origin Stories | The Leakey Foundation | |
| 21 | 1 | I | Inquiring Minds | Indre Viskontas | |
| 22 | 1 | B | Big Picture Science | Big Picture Science | |
| 23 | 14 | N | New Scientist Weekly | New Scientist | |
| 24 | 1 | R | Roaring Earth | Roaring Earth | |
| 25 | 15 | A | Applied Science | Yogi Reben | |
| 26 | 1 |  | COMPLEXITY | Santa Fe Institute | |
| 27 | 16 | C | Casual Space | Beth Mund | |
| 28 | 1 | A | A Neuroscientist Explains | The Guardian | |
| 29 | 17 | A | Aqua Marianas | Sinking Feelings Productions | |
| 30 | 2 | A | America Adapts the Climate Change Podcast | Doug Parsons | |
| 31 | 2 |  | Spacepod | Carrie Nugent | |
| 34 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 34 | — |  | Ask the Naked Scientists | Dr Chris Smith | |
| 35 | 2 |  | Scotland Outdoors | BBC Radio Scotland | |
| 36 | 2 | W | What it Means To Be Human | What It Means to Be Human | |
| 37 | 81 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 37 | 2 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 38 | 7 |  | Curious Cases | BBC Radio 4 | |
| 38 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 38 | 110 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 38 | 7 |  | Need To Know | Bryce Zabel | |
| 39 | — |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 40 | 1 |  | Science Vs | Spotify Studios | |
| 41 | 1 |  | Bigfoot Society | Jeremiah Byron | |
| 41 | 13 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 42 | — |  | All In The Mind | ABC | |
| 42 | 107 | 2 | 24/7 | Beggi Ólafs | |
| 43 | — | F | Fossils and Fiction | Travis Holland and Alyssa Fjeld. | |
| 43 | 1 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 43 | 1 |  | That UFO Podcast | That UFO Podcast | |
| 44 | 4 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 45 | 5 | E | Endocrine Feedback Loop | Endocrine Society | |
| 46 | 2 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 47 | — |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 47 | 7 | V | Von Ráðgjöf - Lausnin Hlaðvarp | Von ráðgjöf - Lausnin hlaðvarp | |
| 48 | 9 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 49 | 10 |  | Paradigmepodden | Terje Toftenes | |
| 50 | 3 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 52 | 3 |  | Quirks and Quarks | CBC | |
| 53 | 9 |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 54 | 18 |  | The Quanta Podcast | Quanta Magazine | |
| 54 | 10 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
| 55 | 1 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 56 | 1 |  | Science Magazine Podcast | Science Magazine | |
| 57 | 139 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 57 | 5 |  | Paranormal Portal | Brent Thomas | |
| 58 | 88 |  | La Science, CQFD | France Culture | |
| 58 | 5 |  | Science Friday | Science Friday and WNYC Studios | |
| 59 | 5 |  | Instant Genius | Our Media | |
| 59 | 127 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 60 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 60 | — | U | Universal Disclosure Podcast (UAP / UFO Disclosure and our Belief Systems, Spirituality) | UFO Investigator Mike and Reverend Stu | |
| 61 | 1 | T | The We Society | AcSS | |
| 62 | 80 |  | This Week in Virology | Vincent Racaniello | |
| 63 | 7 |  | CrowdScience | BBC World Service | |
| 63 | 4 |  | Quantitude | Greg Hancock & Patrick Curran | |
| 63 | — |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 63 | 47 |  | Short Wave | NPR | |
| 64 | 12 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 64 | — | T | The WildX Podcast | Andy Green, Mike Phelps and Adam Juckes | |
| 65 | 6 | F | Farming Today | BBC Radio 4 | |
| 66 | 26 |  | Dumma Människor | Acast - Lina Thomsgård och Björn Hedensjö | |
| 67 | 20 |  | Kapphlaupið til tunglsins | Sævar Helgi Bragason | |
| 68 | 6 | I | Into The Parabnormal | Jeremy Scott | |
| 69 | 28 |  | Unexpected Elements | BBC World Service | |
| 72 | 81 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 73 | 8 | ب | بودكاست آن | Arabcast | |
| 74 | 16 |  | The Science Show | ABC | |
| 76 | 8 |  | Flash Forward | Rose Eveleth | |
| 77 | 29 |  | Mysterious Universe | 8th Kind | |
| 79 | 1 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 80 | — | P | Pod of Orcas | SeaDoc Society | |
| 81 | — |  | Critical Matters | Sound Physicians | |
