Star cluster · NGC 513917,000 light-years away
Omega Centauri
Omega Centauri is the largest and most massive globular cluster orbiting the Milky Way, a glittering swarm of roughly 10 million ancient stars packed into a ball about 150 light-years wide and visible to the naked eye from the southern sky. Astronomers now suspect it may be the stripped-down core of a dwarf galaxy our galaxy once devoured, and Hubble has uncovered compelling evidence for a rare intermediate-mass black hole hiding in its crowded heart.
