Photos: Endeavour flies over Ariz. en route to Calif. home
Endeavour flies over Ariz. en route to Calif. home
Credit: Getty Images
IN SPACE - MAY 20: In this handout provided by National Aeronautics and Space Administration (NASA), Astronaut Drew Feustel works in the vacuum of space during the first of four spacewalks during the STS-134 mission of NASA Space Shuttle Endeavour to the International Space Station on May 20, 2011 in space. After 20 years, 25 missions and more than 115 million miles in space, Endeavour is on its final flight to the International Space Station before being retired and donated to the California Science Center in Los Angeles. Capt. Mark E. Kelly, U.S. Rep. Gabrielle Giffords' (D-AZ) husband, will lead mission STS-134 as it delivers the Express Logistics Carrier-3 (ELC-3) and the Alpha Magnetic Spectrometer (AMS-2) to the International Space Station. (Photo by NASA via Getty Images)
![Space shuttle Discovery ready for voyage to museum [PHOTOS]](http://media.azfamily.com/images/96*53/SHUTTLE-BKGD.jpg "Space shuttle Discovery ready for voyage to museum [PHOTOS]")
