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.