KENNEDY SPACE CENTER, Florida (CNN) -- The space shuttle Discovery touched down Tuesday morning, completing NASA's first shuttle mission since Columbia broke apart during re-entry in February 2003.

The shuttled landed at 5:11 a.m. PT at NASA's secondary landing site at Edwards Air Force Base in California.

"Congratulations on a truly spectacular test flight" mission control radioed the crew. "Welcome home friends."

"We're happy to be back and we congratulate the whole team for a job well done," said Commander Eileen Collins.

It was the 50th shuttle landing at Edwards.

Earlier Tuesday NASA waved off its two opportunities for Discovery to land at its primary site at Kennedy Space Center because of stormy weather off the Florida coast.

Weather conditions at Edwards included clear skies and light winds, "excellent conditions for a space shuttle landing," NASA said.

"How do you feel about a beautiful clear night with a breeze down the runway in the high desert of California?" mission control radioed Collins.

"We are ready for whatever we need to do," Collins said.

Discovery's path to Edwards began with the spacecraft firing its engines over the Indian Ocean to slow it enough to re-enter Earth's atmosphere over the Pacific.

"Discovery is on its way back to Earth," NASA spokesman James Hartsfield said.

Shuttle pilot James Kelly steered Discovery on a trajectory leading it near Los Angeles and Oxnard, California, with touch down at Edwards' Runway 22.

NASA officials vowed to land the orbiter Tuesday at one of three locations after weather conditions forced them to scrub the shuttle's scheduled return a day earlier. The Kennedy Space Center in Florida was NASA's first choice. Edwards their second and White Sands Missile Range in New Mexico their third.

Officials would have preferred to land at Kennedy Space Center to avoid the cost and inconvenience of flying the shuttle back to its launch site from the alternative landing strips.

Mission STS-114 largely was designed to improve safety on future shuttle journeys, although the program has been suspended while NASA investigates its failure to solve the problem of foam falling from the shuttle's external liquid fuel tank during launch.

Video from the July 26 launch showed debris falling from the fuel tank, but NASA said it did not appear to have struck the orbiter.

Once in space, Discovery's crew used cameras to scrutinize the craft's exterior for possible damage that might pose a threat during re-entry.

The shuttle spent most of the mission docked to the international space station, delivering much-needed supplies and performing maintenance on the outpost.

Astronaut Steve Robinson performed an unprecedented shuttle repair mission by plucking two pieces of filler material protruding between tiles on Discovery's underside. NASA wanted them removed to ensure they wouldn't overheat, damaging Discovery's belly during re-entry.