CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-3 at NASA's Kennedy Space Center in Florida, space shuttle Discovery is outfitted with one of its three space shuttle main engines. The engines, weighing 7,000 pounds each, are being installed in the shuttle for the STS-133 mission to the International Space Station. Engines are inspected and maintained in the nearby Space Shuttle Main Engine Processing Facility before installation. Discovery and its STS-133 crew are targeted to deliver the Express Logistics Carrier-4 filled with external payloads and experiments, as well as critical spare components to the station later this year. Photo credit: NASA_Jack Pfaller
Photographer NASA_Jack Pfaller
Album STS-133