High Quality Content by WIKIPEDIA articles! Hearts of Space is a United States weekly syndicated public radio show featuring music of a contemplative nature drawn largely from the ambient, New Age and electronic genres, while also including classical, world, Celtic, experimental, and other music selections. For many years, the show`s producer and presenter, Stephen Hill, has applied the term "space music" to the music broadcast on the show, irrespective of genre. It is the longest-running radio program of its type in the world.