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The Northrop Grumman Antares rocket, with Cygnus resupply spacecraft onboard, launches from Pad-0A at NASA's Wallops Flight Facility in Virginia, April 17, 2019. Northrop Grumman's 11th contracted cargo resupply mission for NASA to the International Space Station will deliver about 7,600 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew.