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Cygnus is an expendable American automated cargo spacecraft designed for International Space Station (ISS) resupply missions. It was initially developed by Orbital Sciences Corporation with financial support from NASA under the Commercial Orbital Transportation Services (COTS) program.
Cygnus was developed by Orbital Sciences Corporation, partially funded by NASA under the agency's Commercial Orbital Transportation Services program. To create Cygnus, Orbital paired the Multi-Purpose Logistics Module, built by Thales Alenia Space and previously used by the Space Shuttle for ISS logistics, with a service module based on Orbital's GEOStar, a satellite bus.
The spacecraft was an Enhanced Cygnus, named the S.S. Patricia "Patty" Hilliard Robertson in honor of the NASA astronaut who died in a plane crash prior to being assigned to a crew to fly to the ISS. NG-20 was the first launch of a Cygnus spacecraft after Northrop Grumman exhausted the supply of its Antares 230+ rocket.
Cygnus NG-18 was the seventh Cygnus mission under the Commercial Resupply Services-2 contract. Northrop Grumman Innovation Systems confirmed on 23 February 2021 that Thales Alenia Space of Turin, Italy, will fabricate two additional Pressurized Cargo Modules (PCMs) for a pair of forthcoming Commercial Resupply Services-2 missions.
In preparation for unberthing, Cygnus was grappled by Canadarm2 on 2 June 2017. Early on 4 June 2017, the bolts securing Cygnus to the station were retracted, and Canadarm2 unberthed the spacecraft at 11:05 UTC. Crew members aboard the station maneuvered Cygnus to its release attitude, and at 13:10 UTC the vehicle was released from Canadarm2 ...
Cygnus NG-15, [1] [5] [6] previously known as OA-15, was the fifteenth launch of the Northrop Grumman robotic resupply spacecraft Cygnus and its fourteenth flight to the International Space Station (ISS) under the Commercial Resupply Services (CRS) contract with NASA. The mission launched on 20 February 2021 at 17:36:50 UTC.
The NG-14 Cygnus was named the "S.S. Kalpana Chawla", in memory of the NASA mission specialist who died with her six crewmates aboard the Space Shuttle Columbia in 2003. "It is the company's tradition to name each Cygnus after an individual who has played a pivotal role in human spaceflight", Northrop Grumman said in a statement released on 8 ...
This was the third flight of the Enhanced sized Cygnus PCM. [18] The mission successfully launched on 17 October 2016, 23:45 UTC. [4] In keeping with an Orbital ATK tradition, this Cygnus spacecraft is named the S.S. Alan Poindexter after the NASA astronaut who flew aboard the Space Shuttle twice (2008 and 2010).