| 1 | — |  | Espacio en blanco | Radio Nacional | |
| 2 | — | P | Podcast de Juan Ramón Rallo | Juan Ramón Rallo | |
| 3 | — |  | Órbita Laika. El podcast | RNE Audio | |
| 4 | — | M | Muy Interesante - Grandes Reportajes | Zinet Media | |
| 5 | 2 |  | Materia Oscura | ABC | |
| 6 | — |  | Coffee Break: Señal y Ruido | Coffee Break: Señal y Ruido | |
| 7 | 1 |  | Mindfacts: Historia y futuro de la Ciencia y la Tecnología | Yes We Cast | |
| 8 | 3 |  | A hombros de gigantes | Radio 5 | |
| 9 | — | V | Vida Eterna. Respuestas desde la Ciencia | Dr. Manuel Sans Segarra | Dr. Manuel Sans Segarra | |
| 10 | — | Á | Ático Primera con Laia Castel | laiascastel | |
| 11 | — | L | La Ciencia de A Vivir | Cadena SER | |
| 12 | 10 |  | BBC Inside Science | BBC Radio 4 | |
| 13 | 5 | S | Supersónicos Anónimos | SupersónicosAnónimos | |
| 14 | 6 |  | Serendipias | SER Podcast | |
| 15 | 2 | L | La Brújula de la Ciencia | Alberto Aparici | |
| 16 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 17 | 1 | E | El bosque habitado | Radio 3 | |
| 18 | 12 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 19 | 7 | H | Hablando con Científicos - Cienciaes.com | cienciaes.com | |
| 20 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 21 | 8 | C | Cienciaes.com | cienciaes.com | |
| 22 | — |  | The world, the universe and us | New Scientist | |
| 23 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 24 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 25 | 2 | P | PARSEC | Javier Atapuerca, Matías S. Zavia | |
| 26 | 7 | R | Ruido de lluvia y truenos para dormir | Ruido de lluvia | |
| 27 | 12 | C | CardioPODCAST | Sociedad Española de Cardiología | |
| 28 | 61 | S | Saber de física y química | Maria Roel | |
| 29 | 84 |  | Universo curioso de la NASA | National Aeronautics and Space Administration (NASA) | |
| 30 | 4 |  | Discovery | BBC World Service | |
| 31 | 13 | L | La Terra és plana | Catalunya Ràdio | |
| 32 | 19 | A | Aparici en Órbita | Alberto Aparici | |
| 33 | 16 |  | Science Weekly | The Guardian | |
| 34 | 2 | U | Un Humano por Persona | Tamara Pazos Cordal | |
| 35 | 3 | O | Oscilador Armónico | OsciladorArmónico | |
| 36 | 48 | L | La Terre au carré | France Inter | |
| 37 | 144 |  | Speaking of Psychology | American Psychological Association | |
| 38 | 8 | Á | Átomos y Bits | Agencia EFE | |
| 39 | 86 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 40 | 17 |  | Arpa Talks | Arpa Talks | |
| 41 | 18 | D | Domingo de Ciencia | doctorfision | |
| 42 | 16 | A | Astro Podcast | Astro Podcast | |
| 43 | 22 |  | Radiolab | WNYC Studios | |
| 44 | 18 | L | Los Barberos | Los Barberos | |
| 45 | 15 |  | TEDTalks Ciencia y Medicina | TED | |
| 46 | 18 |  | Sapiens | Radio Nacional | |
| 47 | 14 | A | A Ciencia Cierta | meteolp | |
| 48 | 20 |  | Heavy Mental | David, Javier y Miki | |
| 49 | — |  | Mongabay Newscast | Mongabay | |
| 50 | 24 | A | Astrobitácora: astronomía con Álex Riveiro | alex_riveiro | |
| 51 | 67 | E | El último humanista | Fernando Espí Forcén | |
| 52 | — |  | Curious Cases | BBC Radio 4 | |
| 53 | — |  | The Life Scientific | BBC Radio 4 | |
| 54 | 55 |  | Science Vs | Spotify Studios | |
| 55 | 37 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 56 | 68 | A | Astronomía y algo más | Ricardo Garcia | |
| 57 | 26 | C | Cruce de cables | Radio Nacional | |
| 58 | 26 | M | Master Class con Juan Luis Arsuaga | OndaCero | |
| 59 | 63 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 60 | 21 | E | El sueño de Laika | JuanMa Parrondo | |
| 61 | 26 |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 62 | 25 | N | Notas de Naturaleza | Iván Vega | |
| 63 | 74 |  | Unexplainable | Vox | |
| 64 | 91 | D | Desde el Observatorio | Astronomia UdeA | |
| 65 | 92 | E | El universo y sus misterios | Física 64 | |
| 66 | 93 | A | Astronomía Autodidacta | Carlos Andres Carvajal Tascon | |
| 67 | 27 | E | Espacio en blanco | Radio Nacional | |
| 68 | 26 | A | A Través del Universo | universo@iaa.es | |
| 69 | 28 | R | RAIZ DE 5 - El podcast más hipotenuso | santigarciacc | |
| 70 | 27 | E | El Método | Luis Quevedo / CUONDA | |
| 71 | 112 | P | Política (con)ciencia | Santiago Hernández | |
| 72 | 118 |  | Почему мы еще живы | libo/libo | |
| 73 | 28 | R | República de Los Cocos | H. Cuerpo diplomático de la Rep. de Los Cocos | |
| 74 | — |  | Quarks Daily | Quarks | |
| 75 | — |  | Radiowissen | Bayerischer Rundfunk | |
| 76 | — |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 77 | — |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 78 | — | H | Hablando de psicología | Facultad de Psicología-UNED | |
| 79 | — |  | Nature Podcast | Springer Nature Limited | |
| 80 | 33 | B | BIOLOGIA | It's KAHOS | |
| 81 | — | N | New Books in Science, Technology, and Society | New Books Network | |
| 82 | — |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 83 | — |  | Physics World Weekly Podcast | Physics World | |
| 84 | — | D | Doble Hélice 3.0 | ULL | |
| 85 | — |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 86 | 38 | E | El Guardabosques WildPodcast | Laura Núñez Bañuls y Fracesco Rovedo | |
| 87 | — |  | Stanford Psychology Podcast | Stanford Psychology | |
| 88 | 39 | C | Cosmology Group Podcasts | Unknown | |
| 89 | — | O | Obsesión por el Cielo | Pedro Valdés Sada | |
| 90 | — | C | Ciencia al punto | Universidad Pública de Navarra | |
| 91 | — |  | The Answer Is Transaction Costs | Michael Munger | |
| 92 | — | N | Naruhodo | B9, Naruhodo, Ken Fujioka, Altay de Souza | |
| 93 | — | E | Espacio COGNiMATH | Alfonso Díaz Furlong | |
| 94 | — |  | Overheard at National Geographic | National Geographic | |
| 95 | — | ![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 | |
| 96 | — | A | Aha! Behind True Crime – Verbrechen und Ermittlungen | WELT | |
| 97 | — | L | La chronique de Caroline Goldman | France Inter | |
| 98 | — | N | Neuronas Curiosas | Pablo Donis | |
| 99 | — | S | SobreCiencia (Uruguay) | Gustavo Villa, Alexandra Perrone, Daniela Hirschfeld | |
| 100 | — |  | BrainStuff | iHeartPodcasts | |
