World’s Most Advanced Mirror for Giant Telescope Completed

Wired October 2012 | World’s Most Advanced Mirror for Giant Telescope Completed.  Scientists at the University of Arizona and in California have completed the most challenging large astronomical mirror ever made. (((What does “most challenging” mean? Tycho Brahe had his nose cut off, that was pretty “challenging.”))) The mirror will be part of the 25-meter Giant Magellan Telescope, which will explore planets around other stars and the formation of stars, galaxies and black holes in the early universe.  more>