An Orbital ATK Antares rocket will launch a commercial Cygnus cargo spacecraft to the International Space Station from Virginia's Eastern Shore before dawn on Monday, and the launch could be visible to potentially millions of spectators along the U.S. East Coast. The Antares rocket is scheduled to launch at 4:39 a.m. EDT (0839 GMT) on Monday (May 21) and should be highly visible across the East Coast of the United States, weather permitting. The mission, called OA-9, will launch from the Mid-Atlantic Regional Spaceport at NASA's Wallops Flight Facility in Virginia to deliver more than 3 tons of supplies to...