Apollo 16 was the second of three science-focused human lunar landings. Young and Duke spent just shy of 3 days on the Moon's surface and drove a second Moon car 26.7 km. While walking on the Moon's surface, Mission Control told Young Congress had approved funding for the Space Shuttle program; Young responded, "America sure needs that Shuttle." He would go on to Command the first Shuttle mission almost exactly 9 years later. After leaving lunar orbit, Mattingly performed a spacewalk to retrieve film cassettes. At a distance of 320,000 km, it stands to this day as the farthest spacewalk ever performed from Earth.