Sixth mirror casting brings Giant Magellan Telescope closer to completion

Tucson AZ (SPX) Mar 05, 2021

At 3 p.m. on March 5, a gigantic furnace will slowly start spinning underneath the stands of Arizona Stadium at the University of Arizona. Fire-engine red, massive in size and resembling a sci-fi version of a Dutch oven, the furnace is the only one of its kind, and its sole purpose is to produce the world's biggest and most advanced telescope mirrors. During the process, nearly 20 tons (17