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Endeavour gets a piggyback ride over Houston on Wednesday.

As the space shuttle Endeavour makes its final trip to a science center in California, it will make a low-level pass over the University of Arizona Mall between 11 a.m. and noon on Thursday. The shuttle, riding on the back of a 747, will swoop over the university at about 1,500 feet. Read more» 1

The space shuttle Discovery takes off on the back of a jumbo jet from Kennedy Space Center in Florida.

After nearly three decades of space travel, NASA's oldest shuttle, Discovery, flew into retirement on Tuesday, joining other museum relics at the Smithsonian National Air and Space Museum. Read more»

Mitt Romney

The last man to walk on the moon and the first space shuttle pilot are among the eight space leaders who endorsed Republican presidential hopeful Mitt Romney on Friday. Read more» 1

Space shuttle Atlantis (STS-135) touches down at NASA's Kennedy Space Center early Thursday, completing its 13-day mission to the International Space Station and the final flight of the space shuttle program. Overall, Atlantis spent 307 days in space and traveled nearly 126 million miles during its 33 flights. Atlantis, the fourth orbiter built, launched on its first mission in 1985.

The U.S. space shuttle Atlantis has landed for the last time, marking the end of NASA's 30-year space shuttle program. (with video) Read more»

The last shuttle flight marks the end of an era of space exploration. And hopefully the beginning of a new one. Read more»

Giffords

U.S. Rep. Gabrielle Giffords is back in a Houston rehab facility following an operation to replace part of her skull last week. Read more» 1

Giffords

U.S. Rep. Gabrielle Giffords is recovering well after having a skull implant and shunt placed in her brain Wednesday, her doctors said. A plastic implant was placed over the left side of her skull, where surgeons removed a section of bone to relieve swelling after the congresswoman was shot Jan. 8. Read more» 1

Endeavour lifts off.

"Good stuff," said U.S. Rep. Gabrielle Giffords as she watched space shuttle Endeavour lift off Monday, commanded by her husband, Capt. Mark Kelly. Giffords' voice sounds normal, and she understands complex concepts, said a staffer. (with videos) Read more» 2

Giffords

U.S. Rep. Gabrielle Gifford plans to travel to Florida to watch as her husband blasts off aboard the space shuttle Endeavour on Monday, her office confirmed Friday. Read more»

The space shuttle Endeavour, whose launch was scrubbed last week when a heater malfunctioned, will lift off on its final mission no sooner than May 16, NASA announced Friday. Rep. Gabrielle Giffords will return to see her husband command the rescheduled launch. Read more»

The space shuttle Endeavour will not blast off Monday, NASA announced. "No launch date will be announced today, but Endeavour will not launch sooner than May 8," the agency said. U.S. Rep. Gabrielle Giffords returned to a Houston rehab center. Read more»

Updated: The launch of the space shuttle Endeavour, set to blast off on its final mission, has been postponed by NASA. It will launch no earlier than Monday at 11:33 a.m Tucson time, the agency said. Giffords was "pleased and honored" to meet with Obama. It's unknown if the congresswoman will remain in Florida until the ship launches. Read more»

Giffords boards an airplane in Houston.

U.S. Rep. Gabrielle Giffords, who hadn't been seen in public since the January 8 shootings, was captured on video by KHOU on Wednesday morning boarding an airplane to fly to Florida. Read more»

The office of U.S. Rep. Gabrielle Giffords has released some information on the congresswoman's plans to travel to Florida to watch her husband blast off on the space shuttle. Specifics on the timing of the trip won't be released because of privacy concerns. Read more»

Giffords

U.S. Rep. Gabrielle Giffords is "medically able" to travel to watch her husband blast off in the space shuttle this week, her doctors confirmed Monday morning. Read more»

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