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CAPE CANAVERAL, Fla. – Fog envelopes the top of the 525-foot-tall Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The massive building, once used to process Apollo Saturn V rockets and space shuttles for launch, is undergoing a transformation to prepare it to support NASA's next-generation rocket, the Space Launch System, or SLS, as well as myriad commercial rockets under development. To learn more about the SLS, visit http:__www.nasa.gov_exploration_systems_sls_. For more on NASA's Commercial Crew Program, visit http:__www.nasa.gov_exploration_commercial_crew_. Photo cre…
