... I am an Assistant Astronomer at the Space Telescope Science Institute in Baltimore, Maryland. I am interested in the formation and evolution of galaxies. I reconstruct the history of nearby galaxies by examining their resolved stellar populations. ... In Santa Cruz I studied the stellar halo of our neighbor, the Andromeda galaxy , using Keck Observatory in Hawaii to take spectra of individual Andromeda stars. ... Karoline Gilbert, PhD . Assistant Astronomer . ...