Clump of active galactic cores that stretch 4 billion light-years from end to end. The structure is a light quasar group (LQG), a collection of extremely luminous Galactic Nulcei powered by supermassive central black holes.
The image below was made during the test-phase of the LOFAR telescope, and targeted the giant elliptical galaxy Messier 87 (above), at the center of a galaxy cluster in the constellation of Virgo. This galaxy is 10 times more massive.
The Birth of Universe: The black hole at the birth of the Universe What we perceive as the big bang, they argue, could be the three-dimensional "mirage" of a collapsing star in a universe profoundly different than our own.
The Cone Nebula lies in the southern part of NGC the Christmas Tree cluster, with which is shares the NGC designation. This is a rich region with much nebulosity and many interesting objects. The Christmas Tree cluster has at its base the variable s