Famous globular cluster Terzan 5: an imposter after all (opens in new tab)

Within the Milky Way, ancient relics still persist. There are slightly over 150 globular clusters identified within 200,000 light-years of the galactic center, with an additional five or six to be found if we double the radius of this search. While most formed along with the Milky Way, a substantial fraction did not, and were brought in at later times when smaller galaxies, such as the Kraken and Gaia-Enceladus, were devoured and cannibalized. Over within our galaxy’s disk, bulge, and halo. T...