feb 222013
Remnant of Swallowed Galaxy Detected?

    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. This illustration shows the disk of our Milky Way galaxy surrounded [continue reading]