The launch of Orbital ATK's Antares rocket has been rescheduled for Sunday morning. Saturday morning's launch was scrubbed after an aircraft was detected in the vicinity of the launch pad. Sunday's launch attempt is set for 7:14 a.m. EST. The rocket is carrying the International Space Station-bound Cygnus cargo spacecraft. It will be Orbital ATK's first supply run from its home turf in more than a year.