Selected as an astronaut candidate by NASA in July 2000, Boe reported to the
Johnson Space Center in August 2000. Following the completion of two years of training and evaluation, he was assigned technical duties in the Astronaut Office Advanced Vehicles Branch and Station Operations Branch. His current technical assignment involves work with displays and controls for future space vehicles. He made his first trip to space as pilot of during
STS-126 on November 14, 2008. Boe flew his second space flight as pilot on
STS-133, the final scheduled flight of the Space Shuttle
Discovery and the third-to-last flight of the
Space Shuttle program. In August 2012, Boe was named
Deputy Chief of the Astronaut Office. In July 2015, NASA announced Boe as one of the first astronauts for
U.S. Commercial spaceflights. Subsequently, he has started working with
Boeing and
SpaceX to train in their commercial crew vehicles, along with the other chosen astronauts –
Sunita Williams,
Robert Behnken and
Doug Hurley. In August 2018, he was assigned to
Boe-CFT, the first test flight of the Boeing
CST-100 Starliner. On January 22, 2019, NASA announced that Boe was unable to fly for medical reasons and replaced him with
Michael Fincke. ==Awards and honors==