This is the 13th planned flight of the Orbital ATK's uncrewed resupply spacecraft Cygnus and its 12th flight to the International Space Station under the Commercial Resupply Services contract with NASA.
Antares known during early development as Taurus II, is an expendable launch system developed by Orbital Sciences Corporation (now part of Northrop Grumman Innovation Systems after Northrop Grumman acquired Orbital ATK) and the Yuzhnoye Design Bureau to launch the Cygnus spacecraft to the International Space Station as part of NASA's COTS and CRS programs. Able to launch payloads heavier than 5,000 kg (11,000 lb) into low-Earth orbit, Antares is the largest rocket operated by Orbital ATK. Antares launches from the Mid-Atlantic Regional Spaceport and made its inaugural flight on April 21, 2013.See Antares Details
This is the twelfth flight to the ISS by the Cygnus spacecraft under the CRS program and their first under the CRS2 program. This is also the 8th use of the enhanced size Cygnus.Cygnus Enhanced Details
Northrup Grumman Innovation Systems designs, builds and delivers space, defence and aviation-related systems to customers around the world. They aquired Orbital ATK in 2018 along with its launchers and ongoing missions. Antares launches from Wallops in Virginia. Minotaur has many launch sites, with the most active now being Cape Canaveral and Vandenberg. Pegasus is an air launched vehicle from an aircraft and so has many launch locations.INFO WIKI