Space Shuttle Columbia facility beginning in January 1984, undergoing modifications that removed the Orbiter Flight Test hardware and bringing it up to similar specifications as those of its sister orbiters. At that time the shuttle fleet was expanded to include "Discovery" and "Atlantis". "Columbia" returned to space on January 12, 1986, with the launch of STS-61-C. The mission's crew included Dr. Franklin Chang-Diaz, as well as the first sitting member of the House of Representatives to venture into space, Bill Nelson. The next shuttle mission, STS-51-L, was undertaken by "Challenger". It was launched on January 28, 1986, ten days after STS-61-C had landed,
Space policy of the United States of his term in 1968. Apollo 11, the first Moon landing, occurred early in Richard Nixon's presidency, but NASA's budget continued to decline and three of the planned Apollo Moon landings were cancelled. The Nixon administration approved the beginning of the Space Shuttle program, but did not support funding of other projects such as a Mars landing, colonization of the Moon, or a permanent space station. On January 5, 1972, Nixon approved the development of NASA's Space Shuttle program, a decision that profoundly influenced American efforts to explore and develop space for several decades thereafter. Under the Nixon administration, however,