Bill Nelson Nelson was a Payload Specialist on 's STS-61-C mission from January 12 to 18, 1986. The Space Shuttle "Columbia" landed at Edwards AFB at 5:59 a.m. PST, on January 18. The mission's elapsed time was 6 days, 2 hours, 45 minutes, and 51 seconds. This flight was the last successful space shuttle flight prior to the "Challenger" accident, which occurred only ten days after the return of the "Columbia". In 1988, Nelson published a book about his space flight experience entitled "Mission: An American Congressman's Voyage to Space". In 1972, Nelson was elected to the Florida House of Representatives as
Space Shuttle changes before it could be completed, the retirement of the Space Shuttle was delayed several times until 2011, serving at least 15 years longer than originally planned. "Discovery" was the first of NASA's three remaining operational Space Shuttles to be retired. The final Space Shuttle mission was originally scheduled for late 2010, but the program was later extended to July 2011 when Michael Suffredini of the ISS program said that one additional trip was needed in 2011 to deliver parts to the International Space Station. The Shuttle's final mission consisted of just four astronauts—Christopher Ferguson (Commander), Douglas Hurley (Pilot), Sandra