CAPE CANAVERAL, Fla. - NASA completed its part in the construction of the International Space Station on Friday, with the final spacewalkers in the 30-year shuttle program attaching an extension boom.
"Twelve years of building and 15 countries and now it's the Parthenon in the sky and hopefully the doorstep to our future," spacewalker Gregory Chamitoff said before heading back inside. "So congratulations, everybody, on assembly complete."
Chamitoff said it was fitting for the shuttle Endeavour to be at the space station for the end of construction since it was there for the first assembly mission in December 1998.
It was the fourth space walk in a week for the Endeavour astronauts, who are headed back to Earth in just a few days to end NASA's next-to-last shuttle flight. One last flight in July will bring up supplies.