Stars, like bees, swarm around the center of bright globular cluster M15. This ball of over 100,000 stars is a relic from the early years of our Galaxy , and continues to orbit the Milky Way's center . M15 , one of about 170 globular clusters remaining, is noted for being easily visible with only binoculars , having at its center one of the densest concentrations of stars known, and containing a high abundance of variable stars and pulsars . Released only recently, this sharp image taken by the Earth-orbiting Hubble Space Telescope spans about 120 light years . It shows the dramatic increase in density of stars toward the cluster 's center. M15 lies about 35,000 light years away toward the constellation of the Winged Horse ( Pegasus ).
Gallery: Comets 2013