WASHINGTON -- Construction of the Antares rocket's launch pad in Virginia is substantially complete after months of delays stemming from difficulties with the facility's fueling and pressurization systems, according to the chief executive of Orbital Sciences Corp., the rocket's commercial operator. Artist's concept of the Antares rocket lifting off from Wallops Island, Va. Credit: Orbital Sciences The first flight of the Antares rocket, which is designed to launch cargo to the International Space Station, is now targeted for August. The second mission of the expendable booster could occur in October or November with Orbital's Cygnus resupply freighter on a demonstration flight to berth with...
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