Flight controllers decided just before 3 p.m. EDT to end today's spacewalk early because of damage to the outer layer of one of Mission Specialist Rick Mastracchio's gloves. Even though there is no threat to his safety, the decision was made as a precaution.

His spacewalking partner, Clay Anderson, is finishing with the retrieval of a transponder on the Port 6 truss. Mastracchio will remain in the Quest airlock until Anderson returns to the airlock following finishing that task.

Retrieval of the two MISSE experiments will be deferred to a future spacewalk. The experiments were deployed in August 2006 and will be returned to Earth for analysis.

The third spacewalk of Endeavour's visit to the International Space Station will help lay groundwork for relocation of the Port 6 truss, upgrade a station voice communications system and retrieve materials experiments.

Endeavour Mission Specialist Rick Mastracchio and station Flight Engineer Clay Anderson are scheduled to begin the 6½-hour spacewalk at 10:01 a.m. CDT.

The Endeavour crew, Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Tracy Caldwell, Mastracchio, Dave Williams, Barbara Morgan and Alvin Drew, and station crew members, Commander Fyodor Yurchikhin, Flight Engineer Oleg Kotov and Anderson, were awakened for spacewalk 3 day at 5:07 a.m. CDT by "Good Morning World." It was written and performed by Morgan's son Adam.