A planned Wednesday demonstration launch of a cargo spacecraft could help double the number of companies that NASA has on tap to supply the International Space Station.
Orbital Sciences Corp. of Dulles, Va., is scheduled to launch its Cygnus spacecraft atop an Antares rocket between 10:50 a.m. and 11:05 a.m. EDT from NASA's Wallops Flight Facility in eastern Virginia. The unmanned spacecraft, carrying 1,300 pounds of cargo, is expected to rendezvous with the space station at 4:30 a.m. Sunday.
Orbital Sciences is the second company to team with NASA to shuttle cargo to the space station.
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