Astronomers estimate that the Andromeda galaxy will collide with our own Milky Way galaxy 8 billion years from now.<br />But CNN reports they now believe that another collision will happen even sooner.<br />The Large Magellanic Cloud will catastrophically collide with the Milky Way in 2 billion years.<br />That's according to a study published this month in the Monthly Notices of the Royal Astronomical Society. <br />
