Astronomers find Biggest structure ever in Universe, takes 4 Billion years to travel from side to side at Speed of Light

British astronomers have found the biggest structure in the universe - so large that it would take a spacecraft travelling at the speed of light 4 billion years to cross it.

 The large quasar group (LQG) is made up of quasars, galaxies from the early days of the universe. This particular group is so large that it challenges modern cosmological theory, researchers said. Dr Roger Clowes from UCLan’s Jeremiah Horrocks Institute led the study.

'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,' he said. 'This is hugely exciting not least because it runs counter to our current understanding of the universe.

 Since 1982 it has been know that quasars tend to group together in clumps or ‘structures’ of surprisingly large sizes, forming large quasar groups or LQG - but researchers have not seen one on this scale before.