Sun Ra said he came from Saturn. Known on earth for his inventive music and extravagant stage shows, he pioneered free-form improvisation in an ensemble setting with the devoted band he called the "Arkestra." Sun Ra took jazz from the inner city to outer space, infusing traditional swing with far-out harmonies, rhythms, and sounds. Described as the father of Afrofuturism, Sun Ra created "space music" as a means of building a better future for American...