CAPE CANAVERAL, Fla. -- NASA has finished its part of the work on the construction of the International Space Station.
Endeavour astronauts Mike Fincke and Gregory Chamitoff became the last shuttle crew members to perform a spacewalk today when they installed a 50-foot boom. All future spacewalks will be performed by full-time space station residents.
The spacewalk was the fourth 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.
No other significant U.S. components are due to fly to the space station, which still has a decade of life ahead of it.
While NASA's role in space station construction is over, the Russian Space Agency plans to add at least one more chamber in another year or two. That job will require multiple spacewalks.