In the Space Station Processing Facility rotates 180 degrees to provide better access for work to be performed on its avionics box.

In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, the Alpha Magnetic Spectrometer-2 (AMS) rotates 180 degrees to provide better access for work to be performed on its avionics box. Technicians also will install a flight releasable grappling fixture to AMS while it is upside down.

AMS is designed to operate as an external experiment on the International Space Station. It will use the unique environment of space to study the universe and its origin by searching for dark matter. AMS will fly to the station aboard space shuttle Endeavour's STS-134 mission targeted to launch Feb. 27, 2011. Photo credit: NASA/Jack Pfaller