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Unmanned SpaceX Rocket Explodes on Florida Launchpad

Explosions have been reported at the launch pad for a SpaceX rocket in the U.S. state of Florida. NASA said SpaceX was testing an unmanned rocket when a series of blasts rocked the site Thursday morning, shaking buildings several kilometers away. Webcam video showed a large plume of smoke at the launch site. Few details are known about the extent of the damage or whether there are any casualties. Authorities said the test was part of preparations for the launch Saturday of a rocket...

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