Watch: Elon Musk explains how SpaceX's Mechazilla can catch Super Heavy booster

SpaceX successfully flew a 233-foot rocket booster back to its launch site and caught it mid-air using Mechazilla's mechanical arms. The Super Heavy Booster, weighing about 250 tons, was captured after a test flight. "When the engines land... it's gonna drop the velocity to basically zero and come in between the arms. The arms...