Astronauts complete mission's final spacewalk

Canadian astronaut Steve MacLean watched two of hiscrewmates float in space Friday during the last of the spacewalks scheduled for the crew of space shuttle Atlantis.

MacLean, 51, walked out into space on Wednesday, becoming just the second Canadian to do so.

Friday's spacewalk was the third for the crew of Atlantis, which is in the middle of an 11-day mission to the International Space Station. The spacewalk began at 6 a.m. ET and ended shortly before 1 p.m. ET.

Joe Tanner and Heidemarie Stefanyshyn-Piper, the two astronauts who completed the first spacewalk on Tuesday, ventured out again Friday morning to monitor the newly installed solar panels and unpack a radiator. Itwill be used to dissipate heat generated by electronics on the solar panels.

The primary task of the spacewalks has been toconnect wiring leading to the space station's new addition andto remove launch restraints from the solar wings and the radiator. MacLean was joined by Daniel Burbank on Wednesday.

To help get the astronauts ready for Friday's spacewalk, the wake-up song was Hotel California, a tune by the Eagles that Tanner's family has dedicated to him.

"You just can't imagine a flight going as well as this one has gone," lead space station flight director John McCullough told the Associated Press.

The $372-million USaddition to the space station consists of two solar panel wings, which are expected to provide a quarter of the space station's power when it is completedin 2010.

The wings were unfurled Thursday, with the solar panels glowing in space.

Tourist set to blast off

"We can't take our eyes off it," Mission Control said in a message to the space stationFriday.

Tanner is the veteran of this group of astronauts, having now completed seven spacewalks. His total time in space, nearly 46.5 hours, puts him in fourth place on the world spacewalking list.

Atlantis is scheduled toundock fromthe ISS on Sunday morning ET. That night, just after midnightET, a Russian Soyuz capsule is scheduled to launch.

The spacecraft will carry two crewmembers for the ISS and a space tourist, American Anousheh Ansari. The Iranian-born entrepreneur will be the fourth space tourist and the first woman to pay her way on the station.

Ansari's contract with the Russian space agency prevents her from revealing the cost of her trip, but previous tourists Dennis Tito, Mark Shuttleworth and Greg Olsen have paid about $20 million US.

A Soyuz capsule docked at the ISS is scheduled to carry Ansari back to Earth Sept. 24, along with two crewmembers who have been on the station since April 1.