Astronomers chart invisible ocean of dark matter swirling outside the Milky Way

Source: Live ScienceThe trail of stars, located outside the star-flecked spiral arms of the Milky Way’s central disk in a region called the galactic halo, is being carried along in the cosmic slipstream of a dwarf galaxy in orbit around the Milky Way, according to a new sky map created by astronomers.The galaxy, called the Large Magellanic Cloud (LMC), is orbiting some 130,000 light-years away from Earth and stirring up the wake of cosmic material behind it. At first glance, the