Cosmonauts wrap up 5-hour ISS spacewalk
Russian cosmonauts Dmitri Petelin and Sergey Prokopyev concluded their five-hour spacewalk at the International Space Station Friday. The cosmonauts first spent the day readying their Orlan spacesuits in the Station's Poisk airlock, where they attached batteries, checked for leaks and tested the suits' communications systems. The pair had completed two previous spacewalks since A