KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building at NASA’s Kennedy Space Center, Lockheed Martin workers are validating electrical tests on the heating element recently attached to the liquid hydrogen feedline bellows on External Tank 121. Seen behind them is the External Tank. The tank will be used on the orbiter Discovery for Return to Flight mission STS-114, which has a launch window extending from July 13 to July 31.
Album STS-114