NASA's space shuttle Endeavour recently returned to the Orbiter Processing Facility (OPF) at NASA's Kennedy Space Center in Florida, after its successful mission to the International Space Station. The shuttle, being a reusable spacecraft, has a cycle of preparation, execution and recovery - Endeavour has been through this cycle 22 times now, since 1992. Here is a look at one full cycle for one space shuttle, starting with the landing of Endeavour from its previous mission (STS-123) on March 26th, and ending with its return to Florida 9 months (and 6.6 million miles) later, after mission STS-126.

April 14, 1981. The orbiter Columbia rested on a runway at Edwards Air Force Base,…