The deepmind project goes deeper and beyond, pushing the boundaries of what is generally conceived as a sensible attention span for the listener. These soundscapes keep going for several hours, inducing a deep cosmic trance that's hard to resist, and sucking you into a galactic void. It's as if the stars suddenly reverberate an ominous yet alluring pitch through the vacuum of space. (as Nova Kova nicely commented on Youtube)
This is deep space ambient for adventurous explorers, psychonauts, practitioners of deep meditation or overall space cadets.