Scientists have been puzzling over Oumuamua ever since the mysterious space object was observed tumbling past the sun in late 2017. Given its high speed and its unusual trajectory, the reddish, stadium-sized whatever-it-is had clearly come from outside our solar system. But its flattened, elongated shape and the way it accelerated on its way through the solar system set it apart from conventional asteroids and comets. https://www.nbcnews.com/mach/scienc...a-object-could-be-alien-spacecraft-ncna931381 Pretty wild stuff. First inter stellar object ever observed in out solar system.