21st century wire say privatization space formally state-run nasa space agency project unite state share high profile controversy recent years today incident punctuate concerns.early morning tell explosion take place launch complex 40 site florida manage spacex private space contractor firm found billionaire elon musk.it clear exact cause accident certain directly relate falcon rocket spacex set deploy part test launch weekend lead final launch new commercial satellite watch washington postan explosion spacex launch site cape canaveral air force station florida occur shortly a.m. thursday brevard county authorities said.a spacex rocket blow test fire county emergency operations center say tweet threat general public catastrophic abort static test fire spacex launchpad ccafs morning said.bryan purtell spokesman air force 45th space wing confirm explosion say emergency crew respond right try determine extent damage exact location possible cause check make sure one injure said.the associate press report explosion shake build several miles away plume smoke could see rise air hour accident image social media show fireball shoot sky continue story washington postread sci-tech news 21st century wire sci-tech file spacex explosion rock launchpad firm cape canaveral facility florida