Update: The Orbital Sciences Antares rocket on the ORB-3 commercial resupply mission to the International Space Station exploded into ball of fire above the launch pad 6 seconds after an on-time liftoff tonight at 6:22 from the Mid-Atlantic Regional Space Port on the Virginia cost. "We do have significant property damage and significant vehicle damage," was the understated announcement made by an official on the communications loop that went over the live feed on the shortly afterwards on the NASA TV website. For more, check out our developing story.

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