Another bittersweet moment for the Space Transportation System (STS) program as Endeavour departs high Bay #3 of the 525 foot tall Vehicle Assembly Building (VAB) for the last time for her STS-134 mission launch. The moon is seen above the VAB as the stack exits the building. This picture was taken from the top of the Launch Control Building. The top of the "stack" is approx 225 feet from ground — essentially a 22 story building traveling at 0.08 mph. The Mobile Launch Platform (MLP) for STS-135 can be seen in the crack of door of high bay #1. The lights are on to illuminate the stack as she takes the 3.1 mile trek to pad 39A. (Photo by Suresh A. Atapattu)
