Survey suggests group of Milky Way stars are homegrown, not alien invaders
Feb. 26 (UPI) -- New analysis suggests a group of Milky Way stars among the galaxy's halo actually began life within the central disk.Like our sun, the majority of the Milky Way's stars are located within the galaxy's central disk. A comparatively smaller portion of stars can be found distributed throughout the galaxy's outer halo.The star aren't scattered randomly, however. Many of them can be organized into large-scale structures -- structures astronomers believe hold clues to the Milky Way's violent past. Scientists believe at least some of these stellar structures are the remnants of smaller galaxies that have collided with and were absorbed by the Milky Way.By surveying the chemical composition of the stars found in the Milky Way's halo, astronomers can gain a better understanding of ...