Final Endeavour spacewalk completed

HOUSTON, May 27 (UPI) -- Astronauts on space shuttle Endeavour Friday completed the last of four spacewalks in the current mission to the International Space State, NASA said.

The 7-hour, 24-minute spacewalk completed by STS-134 astronauts Mike Fincke and Greg Chamitoff at 7:39 a.m. EDT Friday brought the total spacewalk duration for the current mission to 28 hours, 44 minutes, a NASA release said.

Tasks accomplished included stowing the station's 50-foot boom and adding a power and data grapple fixture to upgrade it to what has been dubbed the Enhanced International Space Station Boom Assembly, available to extend the reach of the space station's robotic arm.

During their spacewalk, Fincke and Chamitoff surpassed the 1,000th hour astronauts and cosmonauts have spent in space conducting space station assembly and maintenance.

It was Fincke's ninth spacewalk for a total time of 48 hours and 37 minutes, putting him sixth on the all-time list.

Fincke is set to become the U.S. astronaut who has spent the most number of days in space, surpassing Peggy Whitson's record of 377 days, NASA said.