COSMIC VISION

Joe Mcnally

National Geographic Magazine

DETAIL MAN Beneath the University of Arizona football stadium, a technician pores over the surface of the 8.4-meter Large synoptic Survey Telescope mirror, looking for major flaws.  Over a period of months the glass will be polished to within one millionth of an inch of the precise concave shape required.  A thin coating of aluminum will create the reflective surface.

Joe Mcnally, "COSMIC VISION," in POYi Archive, Item #43272, http://archive.poy.org/items/show/43272 (accessed November 23, 2024).