“Planetarum” by Capn Chris Olds is a lengthy album released in 2023, comprising 20 tracks and spanning almost two hours. The album’s tracklist suggests a cosmic journey, with song titles named after planets and their moons (e.g., Pluto, Uranus, Neptune, Titan, Europa, Mars, Earth, Venus, Mercury). It appears to be an ambient and experimental work, potentially drawing inspiration from scientific source material. Reviews of similar artists and albums with astronomical themes often describe them as exploring vast, ominous, and sometimes unsettling soundscapes, utilizing elements of musique concrète, deep bass, and textured noise to evoke the immensity and mystery of space