An international team of astronomers using NASA’s Hubble Space Telescope has found tantalizing evidence for the existence of a shell of stars that are a relic of cannibalism by our galaxy. This image shows the disk of the Milky Way Galaxy surrounded by a faint halo of old stars (NASA / ESA / A. Field, STScI) “Hubble’s unique capabilities are allowing astronomers to uncover clues to the galaxy’s remote past. The more distant...
