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Questions about the Cygnus cargo space craft designed to service the ISS.

Orbital Sciences developed the Cygnus spacecraft for cargo delivery to the ISS under the NASA COTS program. They received a contract for 8 launches of cargo.

Cygnus has a pressurized module, built by Alenia in Italy (same folk who made the MPLM's and most US Segment space station pressure vessels), and the propulsion/control module is based upon an Orbital satellite bus.