The Giant Magellan Telescope today announced the successful installation of one of its completed 8.4-meter-diameter primary mirrors into a support system prototype at the University of Arizona's ...

Three staff members at ESO work to clean the main mirror of the 11.8 foot (3.6 meter) La Silla telescope. | Credit: A. Silber/ESO ...

PASADENA, Calif.-- (BUSINESS WIRE)--The Giant Magellan Telescope’s third primary mirror will be unveiled at the University of Arizona’s Steward Observatory Mirror Lab on December 6, 2013.

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World’s largest optical mirror successfully installed on support system prototype for the first time to validate telescope’s extraordinary performance. Installation of one of GMT’s 8.4-m-diameter ...