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The United Launch Alliance Mariner arrives at Port Canaveral's Army Warf carrying the third Delta IV Heavy common booster core and second stage for NASA's upcoming Parker Solar Probe spacecraft. The mission will perform the closest-ever observations of a star when it travels through the Sun's atmosphere, called the corona. The probe will rely on measurements and imaging to revolutionize our understanding of the corona and the Sun-Earth connection. Liftoff atop the Delta IV Heavy rocket is scheduled to take place from Cape Canaveral's Space Launch Complex 37 in summer 2018.
