He retired from the Air Force and left NASA in 1998.

In 1982 he left NASA, sold all of his Mantua.

He left NASA in 1970 but returned in 1982 to run a large space station design study.

Within Allen's own family, there was great relief when he left NASA.

Harris left NASA in April 1996, but has continued research.

He was removed from his position and left NASA shortly afterwards.

Then, when I decided to leave NASA, Disney asked me to be involved in their work.

However, this decision left NASA with a number of goals and research avenues to pursue.

"Sean leaves NASA in far better shape than he found it."

Eight experienced astronauts chose to leave NASA rather than wait indefinitely for a chance to fly.