Central Centaurus A

A mere 11 million light-years away, Centaurus A is the closest active galaxy to planet Earth. Also known as NGC 5128, the peculiar elliptical galaxy is over 60,000 light-years across.

A region spanning about 8,500 light-years, including the galaxy’s center (upper left), is framed in this sharp Hubble Image close-up. Centaurus A is apparently the result of a collision of two otherwise normal galaxies resulting in a violent jumble of star forming regions, massive star clusters, and imposing dark dust lanes.

Near the galaxy’s center, leftover cosmic debris is steadily being consumed by a central black hole with about 60 million times the mass of the Sun. As in other active galaxies, that process likely generates the radio, X-ray, and gamma-ray energy radiated by Centaurus A.