The Ranger 8 space mission, which launched on February 17, 1965, returned close-up images of the Moon's surface.The mission was successful and its images helped scientists determine suitable landing sites for the Apollo program.Ranger 8 sent back 7,137 images of the lunar surface, with its last image having a resolution of about five feet.The impact site of Ranger 8 was later imaged by Lunar Orbiter 2 in 1966 and in greater detail by the Lunar Reconnaissance Orbiter in 2012.