CAPE CANAVERAL, Florida - At NASA's Kennedy Space Center in Florida, the STS-134 crew takes a break from a simulated launch countdown and simulated pad emergency to take a group photo on the 195-foot level of Launch Pad 39A. From left are, Commander Mark Kelly, Pilot Greg H. Johnson, and Mission Specialists Michael Fincke, Andrew Feustel, Roberto Vittori, with the ESA, and Greg Chamitoff. The simulations are part of a week-long Terminal Countdown Demonstration Test (TCDT). Endeavour's six crew members are targeted to launch April 19 at 7:48 p.m. EDT. They will deliver the Express Logistics Carrier-3, Alpha Magnetic Spectrometer-2 (AMS), a high-pressure gas tank, additional spare parts for the Dextre robotic helper and micrometeoroid debris shields to the International Space Station. This will be the final spaceflight for Endeavour.