Apollo program missions. Apollo 13's Fra Mauro mission was reassigned to Apollo 14, commanded in February 1971 by Mercury veteran Alan Shepard, with Stuart Roosa and Edgar Mitchell. This time the mission was successful. Shepard and Mitchell spent 33 hours and 31 minutes on the surface, and completed two EVAs totalling 9 hours 24 minutes, which was a record for the longest EVA by a lunar crew at the time. In August 1971, just after conclusion of the Apollo 15 mission, President Richard Nixon proposed canceling the two remaining lunar landing missions, Apollo 16 and 17. Office of Management and Budget Deputy
Apollo Applications Program the second stage and enter the now-empty fuel tanks. It was also suggested that the Apollo Telescope and Survey Mission modules might be docked to the Wet Workshop to create a modular space station. The "Planetary Grand Tour" was moved to the Mariner program as "Mariner Jupiter-Saturn", which was later calved off into the Voyager program. Two probes were launched in 1977 on Titan IIIE rockets, with "Voyager 2" completing the full Grand Tour in 1989. Originally, AAP missions would alternate with Apollo lunar missions, starting in 1969. However, when NASA's 1969 budget was cut, focus was shifted to the