Vehicle Assembly Building

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A NASA building, one of the largest constructions in the world, used to support space shuttle operations. It has a total capacity of 3 664 883 cubic m, equal to 3.75 times that of the Empire State Building, New York, and was originally built to assemble the Apollo–Saturn vehicles. The VAB is 160 m tall, 218 m long, and 158 m wide. It has a low bay area for maintenance and overhaul of the shuttle's main engine. The building has four high bays, each with a door 139 m high. Bays 1 and 3 are used to integrate and stack the complete shuttle vehicle, and 2 and 4 to check out and store the external tank, which is then attached to the shuttle waiting in 1 or 3. The completed stack, with solid rocket boosters, is put onto a mobile launcher platform and taken from the VAB to the launch pad by the crawler-transporter.

Subjects: Astronomy and Astrophysics.

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