It's one small hop for a rocket, but one giant leap for reusable rocket ships: A private rocket prototype has sailed through a 6-foot hop that, while short, marked a in a major test for a novel reusable launch system being developed by commercial spaceflight company SpaceX.
Called "Grasshopper," the rocket lifted off briefly then set back down on four spidery legs during the recent test at SpaceX's proving ground in McGregor, Texas.
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