The American flag sways in the breeze as space shuttle Endeavour launches on the STS-134 mission to the International Space Station.

The American flag sways in the breeze as space shuttle Endeavour launches on the STS-134 mission to the International Space Station. The shuttle and its six-member crew lifted off from Launch Pad 39A at NASA's Kennedy Space Center in Florida on time at 8:56 a.m. EDT on May 16.

STS-134 will deliver the Alpha Magnetic Spectrometer-2 (AMS), Express Logistics Carrier-3, a high-pressure gas tank and additional spare parts for the Dextre robotic helper to the International Space Station. Endeavour's first launch attempt on April 29 was scrubbed because of an issue associated with a faulty power distribution box called the aft load control assembly-2 (ALCA-2). STS-134 will be the final spaceflight for Endeavour. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Troy Cryder