Astronaut Marsha Ivins Leaves NASA

HOUSTON -- NASA astronaut Marsha Ivins, a veteran of five spaceflights, has retired from the agency.

"Marsha's incredible depth of mission experience and technical expertise has been a tremendous asset to this office," said Peggy Whitson, chief of the Astronaut Office at NASA's Johnson Space Center in Houston. "We have relied on her expertise for years in many diverse areas, including but not limited to crew provisions, optimal hardware packing, human ratings development, vehicle habitabilit [...]

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