U.S., Russian astronauts prepare space station for docking

Russian and U.S. astronauts conducted a spacewalk today to prepare the International Space Station for the addition of a new dock for visiting craft. International Space Station Commander Gennady Padalka and Flight Engineer Mike Barratt stepped out into the freezing vacuum of space at 2:52 a.m. Houston time today, the National Aeronautics and Space Administration said. It was Padalka’s seventh