Watch SpaceX Nearly Pull Off Its 4th Straight Rocket Landing at Sea (Video)

A new video shows just how close SpaceX came to acing its fourth consecutive rocket landing at sea this week. "Looks like early liquid-oxygen depletion caused engine shutdown just above the deck," SpaceX founder and CEO Elon Musk said via Twitter Thursday (June 16) in a post describing the video, which he also posted to the social networking site. "Turns out the landing was not as fast [as] we thought, but still hard enough to destroy the primary airframe and accordion the engines," Musk added i