On February 18, 2014 the US "Cygnus” (CRS Orb-1 mission) unmanned supply spacecraft was undocked from the International Space Station. The spacecraft, which had been attached to the space station since January 12, was released by astronauts aboard the station using the orbiting complex's huge robotic arm at 11:41 UTC. It was the second flight of "Cygnus” to the ISS. CRS Orb-1 is the first of eight contracted flights by Orbital Sciences under NASA's Commercial Resupply Services (CRS) program.