SPACE - Intergalactic magnifying glasses could help astronomers map galaxy centres

(Phys.org) —An international team of astronomers may have found a new way to map quasars, the energetic and luminous central regions typically found in distant galaxies. Team leader Prof. Andy Lawrence of the Royal Observatory Edinburgh presents the new results on Monday 1 July at the RAS National ...

http://phys.org/news/2013-07-intergalactic-magnifying-glasses-astronom