HOUSTON — Astronauts aboard the shuttle Endeavour and the international space station on Saturday embarked on the last spacewalk of their joint mission, an outing that was scaled back because of approaching Hurricane Dean.
NASA shortened the spacewalk by two hours so Endeavour could return to Earth on Tuesday, a day early, if the storm appeared to threaten the Houston home of Mission Control.
Spacewalkers Dave Williams and Clay Anderson were scheduled for about 4 1/2 hours of work installing a shuttle inspection boom stand on the station and securing an antenna mount. The rest of the original itinerary involved several space station chores that could be done later.
As soon as Mr. Williams left the hatch of the International Space Station today, he set a record for number of spacewalks by a Canadian.
His third spacewalk topped the two by Chris Hadfield.
Mr. Williams is poised to set a second record – most time a Canadian has spent freely floating in space.
By the time Mr. Williams returns to the space station, he'll have spent roughly 17-and-a-half hours in space, compared to Mr. Hadfield's 14 hours and 56 minutes in 2001.
Mr. Williams and space station Flight Engineer Clay Anderson are in space today to do more work on the space station.
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