NASA's Space Shuttle "Endeavour" crew arrives at the Kennedy Space Center.

Astronaut, Commander Mark Kelly (r) and Mission Specialist Mike Fincke (l) climb out of their NASA T38 following arrival at the Kennedy Space Center for preparation to fly on mission STS 134 on April 26, 2011. Endeavour and her crew are flying on a fourteen day mission which is scheduled for launch at 3:47 pm on April 29. This is Endeavour's twenty fifth and final mission, and is set to deliver the Alpha Magnetic Spectrometer and a pallet called the Express Logistics Carrier #3, which will contain spare parts to equip the outpost after the shuttle program ends later this year. (UPI Photo / Joe Marino, Bill Cantrell)