Spacewalking Astronauts Tackle 'High-Flying Plumbing' Job on Space Station

Two American astronauts took a marathon spacewalk on Friday, spending nearly eight hours outside the International Space Station on a truly out-of-this-world plumbing job. NASA astronauts Scott Kelly and Kjell Lindrgren spent seven hours and 48 minutes working outside the station to perform the vital maintenance on their spacecraft. It was their second spacewalk in nine days. The duo's first-ever spacewalk last week, commanded by Kelly, had the two on separate tracks as they performed a variety of long-term maintenance tasks outside the station. This time around, commanded by Lindgren, they worked together, synchronizing their actions to reconfigure and add ammonia to the port-side station cooling systems — "high-flying plumbing," as NASA officials called it via Twitter. More

(Source: Space.com - Nov 7)