HOUSTON (Reuters) - Two shuttle Discovery astronauts completed a seven-hour spacewalk on Saturday to restore a space station steering device and test shuttle heat shield repairs that might give crews a better chance of avoiding a Columbia-like disaster.
"You did a great job today," Mission Control's Mike Massimino radioed to the crew as rookie spacewalkers Stephen Robinson and Soichi Noguchi tucked back inside the shuttle's airlock after nearly seven hours outside the ship.
