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NASA's mobile launcher (ML) atop crawler-transporter 2 (CT-2) moves along the crawlerway on its trek to Launch Pad 39B on Aug. 31, 2018, at the agency's Kennedy Space Center in Florida. CT-2 will move the ML up to the surface of the pad where it will undergo a fit check, followed by several days of systems testing. The 380-foot-tall mobile launcher is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to NASA's Space Launch System (SLS) and Orion spacecraft. Exploration Ground Systems is …
