This image shows the rear of space shuttle Endeavour and it covered three main engines as a worker attaches an overhead crane.

In the transfer aisle of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, this image shows the rear of space shuttle Endeavour and it covered three main engines as a worker attaches an overhead crane. The crane will lift the spacecraft into a high bay where it will be attached to its external fuel tank and solid rocket boosters for its final mission, STS-134.

Endeavour and its STS-134 crew will deliver the Express Logistics Carrier-3, Alpha Magnetic Spectrometer, a high-pressure gas tank, additional spare parts for Dextre and micrometeoroid debris shields to the International Space Station. Launch is targeted for April 19 at 7:48 p.m. EDT. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Frankie Martin