[Can also run tomorrow with next launch attempt]
Antares launch to resupply space station halted by wayward airplane [spaceflightnow.com]
Managers aborted liftoff of a commercial Antares cargo launcher Saturday when an aircraft strayed into restricted airspace near the rocket's planned flight path east from Virginia's Eastern Shore.
The Antares rocket and a Cygnus supply ship, both owned by Orbital ATK, were ready for liftoff at 7:37 a.m. EST (1237 GMT) Saturday. The launch team loaded kerosene and liquid oxygen propellants into the first stage of the Antares booster, and a computer-controlled countdown sequencer took over for the final three minutes before liftoff.
But an unidentified aircraft ventured into the safety zone surrounding the rocket and its planned trajectory over the Atlantic Ocean. "LC, LC, we are red," a member of the launch team told Adam Lewis, Orbital ATK's launch conductor. "We have an aircraft in the hazard area." "Copy that," Lewis replied. "Abort, abort, abort. This is LC on the countdown net. Abort, abort, abort. Proceed to the abort safing checklist."
Also at Spaceflight Insider [spaceflightinsider.com].