OA 7 S.S. John Glenn Cygnus spacecraft thunders of pad on Atlas V rocket!

CAPE CANAVERAL, Fla. -- United Launch Alliance (ULA), NASA and Orbital ATK launched the S.S. John Glenn Cygnus spacecraft and its approximately 7,262 lbs (3,294 kilograms) worth of cargo, crew supplies and experiments to the International Space Station. The OA-7 mission was launched on April 18, 2017 at 11:11 a.m. EST (15:11 GMT) with the third flight of an Atlas V 401 rocket under NASA's Commercial Resupply Services contract that Orbital ATK has with NASA.