| 1 | — |  | Espacio en blanco | Radio Nacional | |
| 2 | 1 |  | Mindfacts: Historia y futuro de la Ciencia y la Tecnología | Yes We Cast | |
| 3 | 1 | P | Podcast de Juan Ramón Rallo | Juan Ramón Rallo | |
| 4 | 1 |  | Materia Oscura | ABC | |
| 5 | 1 |  | Órbita Laika. El podcast | RNE Audio | |
| 6 | — | M | Muy Interesante - Grandes Reportajes | Zinet Media | |
| 7 | — |  | Coffee Break: Señal y Ruido | Coffee Break: Señal y Ruido | |
| 8 | — |  | Serendipias | SER Podcast | |
| 9 | 3 |  | A hombros de gigantes | Radio 5 | |
| 10 | 1 | S | Supersónicos Anónimos | SupersónicosAnónimos | |
| 11 | — | Á | Ático Primera con Laia Castel | laiascastel | |
| 12 | 2 |  | Heavy Mental | David, Javier y Miki | |
| 13 | — | V | Vida Eterna. Respuestas desde la Ciencia | Dr. Manuel Sans Segarra | Dr. Manuel Sans Segarra | |
| 14 | 4 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 15 | 2 | L | La Ciencia de A Vivir | Cadena SER | |
| 16 | — |  | Universo curioso de la NASA | National Aeronautics and Space Administration (NASA) | |
| 17 | 2 | O | Oscilador Armónico | OsciladorArmónico | |
| 18 | 6 | H | Hablando con Científicos - Cienciaes.com | cienciaes.com | |
| 19 | 4 | C | Cruce de cables | Radio Nacional | |
| 20 | 5 |  | Making Sense with Sam Harris | Sam Harris | |
| 21 | 1 | A | Aparici en Órbita | Alberto Aparici | |
| 22 | 4 | L | La Brújula de la Ciencia | Alberto Aparici | |
| 23 | 2 |  | Sapiens | Radio Nacional | |
| 24 | 19 | F | Filosofía, Psicología, Historias | Hernán Melana | |
| 25 | — | A | A Ciencia Cierta | meteolp | |
| 26 | 22 | A | Astronomía y algo más | Ricardo Garcia | |
| 27 | 40 | E | El último humanista | Fernando Espí Forcén | |
| 28 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 29 | 1 |  | Radiolab | WNYC Studios | |
| 30 | — | P | PARSEC | Javier Atapuerca, Matías S. Zavia | |
| 31 | 4 |  | Science Weekly | The Guardian | |
| 32 | 106 | L | La Terra és plana | Catalunya Ràdio | |
| 33 | 1 | 3 | 3 Chanchitos | Almar | |
| 34 | 1 | A | Astrobitácora: astronomía con Álex Riveiro | alex_riveiro | |
| 35 | 6 |  | Brave New World | Evening Standard | |
| 36 | 151 | N | Notas de Naturaleza | Iván Vega | |
| 37 | 15 | E | Esto no ha pasado (Tampoco es el fin del mundo) | Newtral | |
| 38 | 11 | L | La Ciencia Pop | Gabriel León | |
| 39 | 17 | M | Master Class con Juan Luis Arsuaga | OndaCero | |
| 40 | 14 |  | Jefillysh: Ciencia Simplificada | Carolina Jefillysh | |
| 41 | 16 | P | Podcast Radio Skylab | radioskylab_es | |
| 42 | 13 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 43 | 21 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 44 | — |  | AstroGeo - Geschichten aus Astronomie und Geologie | Karl Urban und Franziska Konitzer | |
| 45 | — |  | IQ - Wissenschaft und Forschung | Bayerischer Rundfunk | |
| 46 | — | W | Welt der Physik | Podcast | Welt der Physik | |
| 47 | — |  | Ovni Esp | Ovni Esp | |
| 48 | 26 |  | Ologies with Alie Ward | Alie Ward | |
| 49 | 24 | T | Thinking Allowed | BBC Radio 4 | |
| 50 | — | W | Wissenschaft im Brennpunkt | Deutschlandfunk | |
| 51 | — | S | Sternzeit | Deutschlandfunk | |
| 52 | — | I | IQ - Wissenschaft schnell erzählt | Bayerischer Rundfunk | |
| 53 | — | B | BIOfunk - Der Biologie Podcast | BiOfunker | |
| 54 | — | D | Down the Rabbit Hole - Der TU Dresden Biologie Podcast | Down the Rabbit Hole / Cosi, Lenin, Olli | |
| 55 | 15 |  | PÍLDORAS de BIOTECH | Ysios Capital & Pharma New Talent | |
| 56 | 30 |  | Accidental Gods | Accidental Gods | |
| 57 | 24 | T | Tras la tormenta | Radio Nacional | |
| 58 | 8 | L | L'or noir du Sénégal : Comprendre l'industrie pétrolière et ses enjeux au Sénégal | Fary Ndao | |
| 59 | 37 |  | Голый землекоп | libo/libo | |
| 60 | 40 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 61 | 34 | L | La Esfera Celeste Astronomía | Pep Campàs | |
| 62 | 30 | Q | Quilo de Ciencia - Cienciaes.com | Jorge Laborda | |
| 63 | 40 |  | Fallo de sistema | Radio 3 | |
| 64 | 35 |  | Curious Cases | BBC Radio 4 | |
| 65 | 34 | P | Podcasts de Física | fisicapodcasts | |
| 66 | 40 | U | Un Humano por Persona | Tamara Pazos Cordal | |
| 67 | 65 | C | Ciencia y genios - Cienciaes.com | cienciaes.com | |
| 68 | 77 | R | Ruido de lluvia y truenos para dormir | Ruido de lluvia | |
| 69 | 61 |  | Wissen Weekly | Spotify Studios | |
| 70 | 61 | C | CardioPODCAST | Sociedad Española de Cardiología | |
| 71 | 71 |  | Science In Action | BBC World Service | |
| 72 | 61 | F | Fricção Científica | Antena3 - RTP | |
| 73 | 37 | N | National Geographic en Español | Aftersight | |
| 74 | 67 |  | Aha! Zehn Minuten Alltags-Wissen | WELT | |
| 75 | 38 | S | Solaris | Podium Podcast | |
| 76 | 34 |  | Arpa Talks | Arpa Talks | |
| 77 | 39 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 78 | 65 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 79 | 40 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 80 | 40 | B | Bacteriófagos | Carmela García Doval | |
| 81 | 82 | C | Conversations with Sergei Guriev | Sciences Po | |
| 82 | 38 | P | Podcast Aeroespacial | Sergio Hidalgo Learreta | |
| 83 | 37 | C | Conversemos de astronomía | Juan Carlos Beamin | |
| 84 | 89 | A | Astro Podcast | Astro Podcast | |
| 85 | 40 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 86 | 97 |  | All In The Mind | ABC | |
| 87 | 97 |  | Palabra Plena, con Gabriel Rolón | Infobae | |
| 88 | — |  | Unexplainable | Vox | |
| 89 | 101 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 90 | — | R | Rätsel des Unbewußten. Psychoanalyse & Psychotherapie. | Dr. Cécile Loetz & Dr. Jakob Müller | |
| 91 | — |  | Aparici en Órbita | OndaCero | |
| 92 | — | L | La Terre au carré | France Inter | |
| 93 | — | M | Medicina Con Cabeza | Carlos Yebra | |
| 94 | — | L | La Climática | Climática / Rocío Gómez & Eloy de la Haza | |
| 95 | 48 |  | Noosfera | La Razón | |
| 96 | — |  | Quarks Daily | Quarks | |
| 97 | — |  | Das Wissen | SWR | SWR | |
| 98 | — | H | Heus aquí... la ciència | Eduscopi | |
| 99 | — | O | Obsesión por el Cielo | Pedro Valdés Sada | |
| 100 | — |  | Ask a Spaceman! | Paul M. Sutter | |
