14-02-10 Crucial Tranquility cooling and power to Space Station

Astronauts Robert Behnken and Nicholas Patrick completed the second of their three spacewalks (EVAs) planned for the STS-130 mission early this Sunday morning Feb 14 at 3:14 AM EST.The pair worked essentially as plumbers today during the spacewalk which began at 9:20 PM Saturday night.They successfully accomplished all their assigned tasks overnight by connecting crucial Tranquility feed lines to the International Space Station (ISS).“It was an extremely exciting and successful day on the International Space Station,one that I’m very proud of,” said Flight Director Bob Dempsey.“The team has been working for over two years to make today happen.And it did,and it was extremely successful and I’m very pleased with the way it has gone.Everything was accomplished as we had planned.”The main goal of EVA 2 was to route four newly redesigned ammonia coolant lines from the new Tranquility life support module to the Destiny laboratory module thereby hooking Tranquility into the space stations existing cooling system.Tranquility could not be fully activated and powered up for use by the ISS crew until fulfilling this essential plumbing job to install the custom built ammonia lines.