NASA begins review of shuttle launch date changes

[Henk Voortwijs]

NASA managers Tuesday asked shuttle engineers to assess retargeting the final two space shuttle missions, moving launch of a mid-September flight with Discovery to Oct. 29 and a late November flight by Endeavour to Feb. 28. The changes would give engineers more time to optimize payloads bound for the International Space Station and avoid launch conflicts with other flights to the lab complex.

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[Henk Voortwijs]

Space shuttle Discovery's STS-133 mission is now targeted for launch Nov. 1 at about 4:33 p.m. EDT. Endeavour's STS-134 mission is targeted for liftoff on Feb. 26, 2011, at about 4:19 p.m. EST. The target dates were adjusted because critical payload hardware for the STS-133 mission will not be ready in time for the previously targeted date. With Discovery's move, Endeavour had to plan for its next available window, which was February.

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