Staff members at the University of Arizona’s Richard F. Caris Mirror Lab recently began making the fifth mirror for the Giant Magellan Telescope, a huge telescope under construction in Chile’s Atacama Desert to peer deep into the universe. Read our full story here .
When complete, the telescope will use seven giant mirrors and one spare to create the equivalent of an 80-foot (25 m) focusing surface. See photos of the mirror #5 casting here.
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