The separation between music and astronomy is only superficial, as Pythagoras already noted in his 'Musica Universalis'. Artists from Gustav Holst to Lady Gaga, through David Bowie or Rob Zombie, have been inspired by the planets of the Solar System, by space travel, and by ideas of life beyond Earth. Bowie claimed to be inspired by '2001: A Space Odyssey' to narrate the story of Major Tom in 'Space Oddity'. Antonio Vega imagined the vastness of the Universe in 'Lucha de Gigantes', as a "recollection of the location of the dimensions of the human being in a cosmic environment, of the relativity between the greatness of humans and their smallness in a grandiose and infinite environment". For instance, within the project 'Cultura con C de Cosmos: Astromúsica' (www.culturaccosmos.es), we propose a journey through time, space, and music, to reach with the imagination what our eyes sometimes cannot.