Two pieces of early American space ephemera: a circa 1959 Jet Propulsion Laboratory booklet on the Juno launch vehicle, 24 pages, offering details about the rocket and America's first satellite, Explorer 1, with several ; and a circa 1961 NASA booklet entitled "Exploring Space… Project Mercury," 14 pages, 8 x 5, offering a general outline of the Mercury program, its mission, and the spacecraft. In overall very good to fine condition, with moderate wear, creasing, and soiling to the Juno booklet.