| 1 | — |  | Espacio en blanco | Radio Nacional | |
| 2 | — | P | Podcast de Juan Ramón Rallo | Juan Ramón Rallo | |
| 3 | — |  | Materia Oscura | ABC | |
| 4 | — |  | Heavy Mental | David, Javier y Miki | |
| 4 | 1 |  | Coffee Break: Señal y Ruido | Coffee Break: Señal y Ruido | |
| 4 | 2 |  | Horizonte – Iker Jiménez | Mediaset | |
| 7 | — |  | A hombros de gigantes | Radio 5 | |
| 7 | 1 | V | Vida Eterna. Respuestas desde la Ciencia | Dr. Manuel Sans Segarra | Dr. Manuel Sans Segarra | |
| 8 | 2 | A | Antifragil Podcast | Omar Enfedaque & Tribal Uri | |
| 9 | 2 |  | Órbita Laika. El podcast | RNE Audio | |
| 9 | 2 | L | La Ciencia de A Vivir | Cadena SER | |
| 11 | 3 | Á | Ático Primera con Laia Castel | laiascastel | |
| 12 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 12 | 3 |  | Sapiens | Radio Nacional | |
| 14 | — |  | Radiolab | WNYC Studios | |
| 14 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 16 | 5 |  | A Question of Science | The Francis Crick Institute | |
| 16 | 4 | H | Hablando con Científicos - Cienciaes.com | cienciaes.com | |
| 18 | 3 | T | Tras la tormenta | Radio Nacional | |
| 19 | 21 | A | Aparici en Órbita | Alberto Aparici | |
| 19 | — | M | Muy Interesante - Grandes Reportajes | Zinet Media | |
| 19 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 20 | 4 | O | Oscilador Armónico | OsciladorArmónico | |
| 20 | — |  | Universo curioso de la NASA | National Aeronautics and Space Administration (NASA) | |
| 21 | 4 | C | Catástrofe ultravioleta | elDiario.es | |
| 22 | 9 | U | Un Humano por Persona | Tamara Pazos Cordal | |
| 23 | 9 | C | Conversemos de astronomía | Juan Carlos Beamin | |
| 23 | 31 | R | Radio de Supervivencia | David Martinez | |
| 24 | 19 | E | El Guardabosques WildPodcast | Laura Núñez Bañuls y Fracesco Rovedo | |
| 25 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 26 | — | E | EHUpodcast | Universidad del País Vasco/Euskal Herriko Unibertsitatea (EHU) | |
| 26 | — |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 26 | 2 | L | La Brújula de la Ciencia | Alberto Aparici | |
| 27 | 5 | H | Hi ha algú, allà fora? | Joan Anton Català | |
| 28 | 12 | N | Notas de Naturaleza | Iván Vega | |
| 28 | 35 | E | El sueño de Laika | JuanMa Parrondo | |
| 30 | 2 |  | BBC Inside Science | BBC Radio 4 | |
| 30 | 10 |  | Serendipias | SER Podcast | |
| 31 | 7 | Á | Átomos y Bits | Agencia EFE | |
| 31 | — |  | The Social-Engineer Podcast | Social-Engineer, LLC | |
| 32 | 11 |  | More or Less | BBC Radio 4 | |
| 33 | 48 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 34 | — | E | El último humanista | Fernando Espí Forcén | |
| 35 | 14 |  | Arpa Talks | Arpa Talks | |
| 36 | 9 | C | Ciencia para leer | CSIC Divulga | |
| 38 | 21 |  | Ciencia y aparte (by Xataka) | Webedia | |
| 38 | 5 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 39 | 34 |  | PÍLDORAS de BIOTECH | Ysios Capital & Pharma New Talent | |
| 39 | 13 |  | All In The Mind | ABC | |
| 39 | 16 |  | Ologies with Alie Ward | Alie Ward | |
| 39 | 9 |  | Short Wave | NPR | |
| 41 | 8 | E | El bosque habitado | Radio 3 | |
| 43 | 7 | L | La Terra és plana | Catalunya Ràdio | |
| 43 | 23 | L | L’actualitat de la UB, en pòdcast | Universitat de Barcelona | |
| 44 | — | A | Astro Podcast | Astro Podcast | |
| 46 | 54 |  | TEDTalks Ciencia y Medicina | TED | |
| 48 | 14 |  | Mindfacts: Historia y futuro de la Ciencia y la Tecnología | Yes We Cast | |
| 49 | 2 | S | Solaris | Podium Podcast | |
| 49 | 11 | D | De Ignorancia Sí que Sé | Alberto Aparici | |
| 50 | 1 | P | Podcast Ladera Sur - Inspirados por la Naturaleza | Ladera Sur | |
| 50 | 44 | B | Biología de Tranquis | Nico Palanca | |
| 51 | 23 | T | The Biotech Startups Podcast | Excedr | |
| 53 | — | C | Catástrofe Ultravioleta | Marcos Paulo Teodoro de Oliveira | |
| 53 | 19 |  | Science In Action | BBC World Service | |
| 54 | — | S | Seducción Y Persuasión De Style Seduction Life | Alister A. García | |
| 55 | 105 | C | Cruce de cables | Radio Nacional | |
| 55 | — | O | Obsesión por el Cielo | Pedro Valdés Sada | |
| 56 | 10 | T | Tierra a la vista | SER Podcast | |
| 56 | 21 | P | Podcasts de Física | fisicapodcasts | |
| 57 | — | M | Mécaniques du vivant | France Culture | |
| 57 | — | E | Esta ronda la paga Newton | Ruth Lazkoz | |
| 58 | 13 |  | Palabra Plena, con Gabriel Rolón | Infobae | |
| 59 | — |  | Conferencias | Borja Vilaseca | |
| 60 | — | U | Una Mirada al Cosmos. | Grupo de Astronomía OrionDelta | |
| 60 | — |  | Skeptics with a K | Skeptic Media Limited | |
| 60 | 11 | T | Trás los pasos de Santa Hildegarda de Bingen | JuanDiegoNetwork.com | |
| 61 | 15 | E | El universo y sus misterios | Física 64 | |
| 62 | 15 | A | Aboga&Cia - Tertulia Jurídica - Podcast de Derecho | Ángel Seisdedos | |
| 63 | — |  | HyperThetical | FilmNation Entertainment | |
| 64 | — | L | Los Barberos | Los Barberos | |
| 64 | — | M | Master Class con Juan Luis Arsuaga | OndaCero | |
| 65 | 17 |  | La vaca esférica | LaVacaEsférica | |
| 65 | — | R | Reserva natural | Radio 5 | |
| 67 | 11 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 68 | — |  | TED Talks Science and Medicine | TED | |
| 69 | 31 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 70 | — |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 70 | — | P | Pharmaceutical Executive | Pharmaceutical Executive Podcast | |
| 70 | — |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 71 | — |  | The Nature Of with Willow Defebaugh | Atmos | |
| 71 | — |  | Soils For Life | Soils For Life | |
| 71 | — | T | The Wild Life: 8D Soundscapes | The Wild Life | |
| 71 | 18 | S | Supersónicos Anónimos | SupersónicosAnónimos | |
| 72 | 31 | M | Master Class con Xurxo Mariño: neurociencia | OndaCero | |
| 73 | — | S | Saving the World From Bad Ideas | WePlanet | |
| 74 | 13 |  | Speaking of Psychology | American Psychological Association | |
| 74 | — | L | La Suite dans les idées | France Culture | |
| 75 | 38 | E | El Podcast de Phil Hugo | Phil Hugo | |
| 75 | — | L | Lung Cancer Considered | IASLC | |
| 75 | — | G | Green Noise | CapeNature | |
