The world’s largest telescope is one step closer to completion

The world's largest telescope is one step closer to completion. This month, the team working on the Giant Magellan Telescope (GMT) completed the second of seven primary mirror segments, a process that began in January 2012.

from TV Aerial Installation Services Warrington https://www.engadget.com/2019/07/31/gmt-worlds-largest-telescope-second-mirror/
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