Spacewalking astronauts wrap up battery improvements
(World News Science)

CAPE CANAVERAL, Fla. (AP) - A pair of spacewalking astronauts wrapped up battery improvements outside the International Space Station on Monday, completing a job begun last fall. NASA`s Jessica Meir and Christina Koch installed the last new battery in a set of six launched to the orbiting lab in September. They also removed two old batteries in their second spacewalk in under a week to upgrade the station`s solar power grid. This marked the women`s third spacewalk together. They conducted the world`s first...