UA finishes work on 1st of massive mirrors

AZ Central October 2012 | Gaint-telescope mirrors headed for Chile observatory.  After seven years of work, University of Arizona scientists in Tucson are finished with what they say is the most advanced giant-telescope mirror ever crafted.  The 27 1/2-foot-diameter mirror will be one of seven eventually installed in the Giant Magellan Telescope on a mountaintop in Chile.  more>