Ancient Stars at Milky Way's Center
A cavalcade of ancient stars circling the center of the Milky Way, the globular cluster Messier 15 was captured by NASA's Hubble Space Telescope in a picture released November 14.
More than 100,000 stars gather in the cluster, which lies some 35,000 light-years away in the constellation Pegasus. Astronomers suspect a large black hole hides at the center of the star cluster.