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 Shuttle retirement to 2028 or beyond. Until another U.S. crew vehicle is ready, crews will access the ISS exclusively aboard the Russian Soyuz spacecraft. The Soyuz was chosen as the ISS lifeboat during the development of the International Space Station, and has been one of the space taxis used by the international participants to this program. A Soyuz took Expedition 1, which included one U.S. astronaut in the year 2000. Previously the United States and Russia had collaborated on extended the Mir space station with the Shuttle-Mir program in the 1990s. Although the Orion spacecraft is oriented towards deep-space missions such as