NASA Orbital ATK Rocket Rolls Out for May 21 Launch

An Orbital ATK rocket rolls out to launch Pad-0A at NASA's Wallops Flight Facility on May 17, 2018, in advance of a May 21 launch from Wallops Island, VA. The Antares will launch a Cygnus spacecraft on a cargo resupply mission to the International Space Station. via NASA http://www.nasa.gov/image-feature/orbital-atk-rocket-rolls-out-for-may-21-launch