SpaceX: Watch Elon Musk's Falcon 9 rocket explode into giant fireball after landing

US space company SpaceX has failed in its latest attempt to successfully land one of its rockets on a floating platform, after their Falcon 9 rocket exploded into a huge fireball after falling over upon touching down on the ground. In video posted by the company's founder and CEO Elon Musk to Instagram, the unmanned rocket appears to successfully descend onto the floating barge in the Pacific. In a comment posted with the video Musk stated, "Falcon lands on droneship, but the lockout collet does