Stellar motions in outer halo shed new light on Milky Way evolution
Thursday, February 21, 2013 - 16:30
in Astronomy & Space
(Phys.org)—Peering deep into the vast stellar halo that envelops our Milky Way galaxy, astronomers using NASA's Hubble Space Telescope have uncovered tantalizing evidence for the possible existence of a shell of stars that are a relic of cannibalism by our Milky Way.