At a press conference following the successful touchdown of a SpaceX's Dragon resupply mission to the International Space Station, CEO Elon Musk said that Dragon 2 will look like "a real alien spaceship" and be capable of propulsive touchdowns on land. Musk also said at the briefing that SpaceX will attempt a water landing of its Falcon 9 rocket later this year -- another key step towards reusable, cheaper spaceflight.