Monday, January 21, 2013

Largest Structure in Universe Discovered a clump of active galactic cores that stretches 4 billion light-years


Largest Structure in Universe Discovered

Astronomers have discovered the largest known structure in the universe, a clump of active galactic cores that stretches 4 billion light-years from end to end.

The structure is a large quasar group (LQG), a collection of extremely luminous galactic nuclei powered by supermassive central black holes. This particular group is so large that it challenges modern cosmological...Expand this post »