Pat Leslie complete their tasks on space shuttle Endeavour's flight deck as the shuttle is powered down for the final time.

In Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, United Space Alliance OV-105 operations chief Mike Parrish, left, and associate operations chief Pat Leslie complete their respective tasks on space shuttle Endeavour’s flight deck as the shuttle is powered down for the final time.

Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Ben Smegelsky