NASA selected Hauck as an astronaut candidate in January 1978. He made an early impression on his fellow astronauts in his first days. Being one of the new TFNGs to sit at the table during his first morning astronaut meeting. Some thought he was either a fool or the most confident among the new candidates. He was assistant Crimson team
CAPCOM for the
first Space Shuttle mission re-entry. His first spaceflight was as pilot for
STS-7, the seventh flight of the
Space Shuttle, which launched from
Kennedy Space Center,
Florida, on June 18, 1983. The crew included
Robert Crippen (spacecraft commander), and three mission specialists,
John Fabian,
Sally Ride, and
Norm Thagard. This was the second flight for the orbiter
Challenger and the first mission with a 5-person crew. During the mission, the STS-7 crew deployed satellites for Canada (ANIK-C2) and
Indonesia (Palapa B-1); operated the Canadian-built
Remote Manipulator System (RMS) to perform the first deployment and retrieval exercise (with the
Shuttle Pallet Satellite (SPAS-01)); and with Crippen conducted the first piloting of the orbiter in close proximity to a free-flying satellite (SPAS-01). Mission duration was 147 hours before landing on a lakebed runway at
Edwards Air Force Base,
California, on June 24, 1983. Hauck was spacecraft commander for the second mission of
Discovery on mission
STS-51-A, which launched on November 8, 1984. His crew included
David M. Walker (astronaut) (pilot), and three mission specialists,
Joseph Allen,
Anna Fisher, and
Dale Gardner. During the mission, the crew deployed two satellites, Telesat Canada's
Anik D-2, and Hughes' LEASAT-1 (
Syncom IV-1). In the first space salvage mission in history, the crew also retrieved for return to Earth the
Palapa B-2 and
Westar VI satellites. STS-51-A completed 127 orbits of the Earth before landing at Kennedy Space Center, Florida, on November 16, 1984. In March 1985, Captain Hauck became the Astronaut Office project officer for the integration of the liquid-fueled
Shuttle-Centaur upper-stage rocket. In May 1985, he was named commander of the Centaur-boosted
Ulysses solar probe mission,
STS-61-F (sponsored by the European Space Agency). It was set to launch in a tight launch window in May 1986. After the
Challenger accident this mission was postponed, and the Shuttle-Centaur project was terminated. In August 1986, Captain Hauck was appointed NASA associate administrator for external relations, the policy advisor to the
NASA Administrator for congressional, public, international, inter-governmental, and educational affairs. He resumed his astronaut duties at the
Johnson Space Center in early February 1987. Hauck was spacecraft commander of
Discovery on
STS-26, the first flight to be flown after the
Challenger accident. The mission launched on September 29, 1988. The flight crew included the pilot,
Richard Covey, and three mission specialists,
David Hilmers,
Mike Lounge, and
George Nelson. During the four-day mission, the crew deployed the
Tracking and Data Relay Satellite (TDRS-C) and operated eleven mid-deck experiments. While in command of the flight, Hauck and the rest of the crew took time to honor those lost on Challenger. Hauck offered words of honor to his fallen friends, "Dear friends, we have resumed the journey that we promised to continue for you. Dear friends, your loss has meant that we could confidently begin anew. Dear friends, your spirit and your dreams are still alive in our heart."
Discovery completed 64 orbits of the Earth before landing at Edwards Air Force Base, California, on October 3, 1988. Hauck logged over 5,500 flight hours, 436 in space. ==Post-NASA experience==