Spaced-out plumbers

A pair of spacewalking astronauts floated back outside to hook up plumbing on the newest room of the International Space Station and bring it alive with power.

Robert Behnken and Nicholas Patrick had to route extra-long hoses that were fashioned just before space shuttle Endeavour's trip to the space station.

The original ammonia coolant lines failed tests, and so engineers had to put together replacement hoses fromshorter spares welded together.