Elon Musk's SpaceX capsule lands successfully in crucial step toward human spaceflight
WHY THIS MATTERS IN BRIEF One of Elon Musk's ambitions is to allow people to live off world, but first you have to get them there and this is the first step in a long journey. SpaceX’s Dragon spacecraft, which Elon Musk first showed off a few months ago, splashed down safely in the At