Friday, January 11, 2013

Astronomers discover the largest structure in the universe!

This is big stuff (pun intended). It seems like every time scientists and astronomers get together they have to re-write one space theory or another. Right now there’s some giddy astronomers running around England with the exciting news.

The newly discovered large quasar group is so enormous, in fact, that theory predicts it shouldn't exist, according to researchers. Now, that’s big:

“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 theory, researchers said.

"While it is difficult to fathom the scale of this LQG, we can say quite definitely it is the largest structure ever seen in the entire universe," lead author Roger Clowes, of the University of Central Lancashire in England, said in a statement. "This is hugely exciting, not least because it runs counter to our current understanding of the scale of the universe."

Quasars are the brightest objects in the universe. For decades, astronomers have known that they tend to assemble in huge groups, some of which are more than 600 million light-years wide.” (Read the rest here)

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