Cygnus Enhanced

Cygnus is a spacecraft developed originally by Orbital ATK and then acquired by Northrup Grumman after an acquisition. It is used to transport cargo to the ISS. The first operational mission of Cygnus to the ISS was in September 2013. One flight on 28 October 2014 ended in a failure when the Antares launch vehicle, used to launch the Cygnus, exploded shortly after launch. This set back the Cygnus launch schedule over a year. Following the launch anomaly a new version known as 'Cygnus Enhanced' was flown. This extended the Cygnus length and allowed it to carry an extra 700kg to the ISS.