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As the sun rises and paints a colorful skyline across NASA's Kennedy Space Center in Florida, media set up their cameras at the countdown clock in the Launch Complex 39 area. At 8:56 a.m. EDT on May 16, space shuttle Endeavour and its six-member STS-134 crew are scheduled to lift off Launch Pad 39A on a mission to the International Space Station. 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. This will be the second launch attempt for Endeavour. The first 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.