Jeremy Schwarz left quality assurance technician and Mike Williams prepare the wing of Endeavour for tile bonding.

Jeremy Schwarz, left, quality assurance technician, and Mike Williams, right, a thermal protection system technician, both with United Space Alliance, prepare the right wing of space shuttle Endeavour for tile bonding. Endeavour is inside Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida.

Ongoing transition and retirement activities are preparing the spacecraft for public display at the California Science Center in Los Angeles. Endeavour flew 25 missions during its 19-year career. Photo credit: NASA/Cory Huston