Two astronomers have uncovered evidence yet that an enormous X-shaped structure made of stars lies within the central bulge of the Milky Way galaxy. Previous computer models and observations of our own galaxy have suggested that the X-shaped structure existed. But no one had observed it directly. Some astronomers argued that previous research that pointed indirectly to the existence of the X could be explained in other ways. “There was controversy about whether the X-shaped structure existed. Our paper gives a good view of core of our own galaxy,” said Dustin Lang, a Research Associate.