Third space station repair mission underway
Updated: 2010-08-16 01:20:22
UPDATE 11:15 AM: The pump has been installed and filled with ammonia coolant. Now the astronauts are cleaning up the work site.
A pair of NASA astronauts began a third spacewalk at 6:20 a.m. today to replace a broken cooling pump that failed during a power surge on July 31 aboard the International Space Station.
The mission [...]