| 1 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | 1 |  | Science Vs | Spotify Studios | |
| 4 | 1 |  | Radiolab | WNYC Studios | |
| 5 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 7 |  | Physics World Weekly Podcast | Physics World | |
| 7 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 8 | — |  | Ologies with Alie Ward | Alie Ward | |
| 9 | 3 |  | Curious Cases | BBC Radio 4 | |
| 10 | 1 |  | More or Less | BBC Radio 4 | |
| 11 | 9 |  | You Are Not So Smart | You Are Not So Smart | |
| 12 | 21 |  | All In The Mind | ABC | |
| 13 | 6 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 14 | 12 |  | Short Wave | NPR | |
| 15 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 4 |  | The world, the universe and us | New Scientist | |
| 17 | 18 |  | Science In Action | BBC World Service | |
| 18 | 3 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 19 | 43 | O | Open Country | BBC Radio 4 | |
| 20 | 13 |  | Science Weekly | The Guardian | |
| 21 | 40 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 22 | 4 |  | The Psychology Podcast | iHeartPodcasts | |
| 23 | 7 |  | CrowdScience | BBC World Service | |
| 24 | 14 | O | Our Changing World | RNZ | |
| 25 | 80 |  | Rare Earth | BBC Radio 4 | |
| 26 | 11 |  | Unexplainable | Vox | |
| 27 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 28 | 1 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 29 | 3 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 30 | 4 |  | Unexpected Elements | BBC World Service | |
| 31 | 6 |  | Every Animal Ever | Dr Cesar Puechmarin, Zach Mander | |
| 32 | 25 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 33 | 16 |  | How We're Wired | The Bertarelli Foundation | |
| 34 | — | T | The Animal Sensemaker | The Observer | |
| 35 | 11 |  | Invisibilia | NPR | |
| 36 | 8 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 37 | 22 |  | BrainStuff | iHeartPodcasts | |
| 38 | 54 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 39 | 51 |  | The Science Show | ABC | |
| 40 | 31 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 41 | 35 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 42 | 19 | T | The Deep-Sea Podcast | Thomas Linley | |
| 43 | — | E | Elemental | RNZ | |
| 44 | 145 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 45 | 17 |  | Discovery | BBC World Service | |
| 46 | 24 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 47 | 23 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 48 | 25 |  | The Life Scientific | BBC Radio 4 | |
| 49 | — | I | In control of your biology | 黃康銘 | |
| 50 | 63 |  | People Helping Nature Podcast | Conservation Amplified | |
| 51 | 100 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 52 | 110 | S | Space | BBC World Service | |
| 53 | 112 | T | This Natural Life | BBC Radio 4 | |
| 54 | 63 |  | The Behavioral Observations Podcast with Matt Cicoria | Matt Cicoria | |
| 55 | 89 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 56 | 112 | W | What The Duck?! | ABC | |
| 57 | — |  | Safety Third | Safety Third | |
| 58 | — |  | Expanded Perspectives | Expanded Perspectives | |
| 59 | — |  | Science unscripted | DW | |
| 60 | 118 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 61 | — |  | The Plodcast | Our Media | |
| 62 | — |  | The Nature & Nurture Podcast | Adam Omary | |
| 63 | — |  | The Common Descent Podcast | Common Descent | |
| 64 | 119 | S | Simplifying Complexity | Sean Brady from Brady Heywood | |
| 65 | 36 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 66 | — | L | La Terre au carré | France Inter | |
| 67 | — | N | Nature Tripping | Jo Kennedy and Cathy Shaw | |
| 68 | 38 |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 69 | — |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 70 | 45 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 71 | — | R | Rewilding In Action | Maureen Howard | |
| 72 | — | W | Waterlands | Wildfowl & Wetlands Trust | |
| 73 | — | B | Branch Out | Botanic Gardens of Sydney | |
| 74 | — |  | Juan on Juan | Juan on Juan Media, LLC. | |
| 75 | — |  | Mind & Life | Mind & Life Institute | |
| 76 | — |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 77 | — |  | Living Planet | DW | |
| 78 | — |  | Bedtime Astronomy | Synthetic Universe | |
| 79 | — |  | The Multiverse Employee Handbook | Robb Corrigan | |
| 80 | — | T | The Organic View | The Organic View | |
| 81 | — | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 82 | — |  | Raising Health | Andreessen Horowitz, a16z Bio + Health | |
| 83 | — |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 84 | — | T | The Universe Speaks in Numbers | Faber and Faber | |
| 85 | — |  | Carry the Two | IMSI | |
| 86 | — | H | How many geese? | Jack Baddams & Roddy Shaw | |
| 87 | — |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 88 | — | I | Infinitely Irrational: A Math Podcast | Infinitely Irrational: A Math Podcast | |
| 89 | — | T | The Planet Earth Podcast | BBC Radio 4 | |
| 90 | — | T | The Titanium Physicists Podcast | Brachiolope Media Network | |
| 91 | — | B | Beautiful Humans: The Social ChangeCast | Beautiful Humans | |
| 92 | — | S | Science Shambles | The Cosmic Shambles Network | |
| 93 | — | P | Physical Attraction | PhysicsPodcast.com | |
| 94 | — | S | Surely You're Joking | Surely You're Joking | |
| 95 | 31 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 96 | 49 |  | MinuteEarth | Minute Earth | |
| 97 | 58 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 98 | 7 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 99 | 63 |  | MinuteEarth | Minute Earth | |
| 100 | 34 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
