SpaceX CEO: Cause of Falcon Rocket Accident Still Unclear

SpaceX is still homing in on why its Falcon 9 rocket exploded after liftoff last week, unable to resolve conflicting data radioed back to the ground before the explosion, CEO Elon Musk said on Tuesday. "It's a huge blow to SpaceX. We take these missions incredibly seriously," Musk said at a webcast International Space Station research and development conference in Boston. So far, no one theory can account for the data collected prior to the rocket's breakup about...

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