Read about "Sixth Mirror Cast for Giant Magellan Telescope" at https://mcdonaldobservatory.org/news/releases/20210305
McDonald Observatory
Mar 05, 2021
Sixth Mirror Cast for Giant Magellan Telescope
The 8.4-meter mirror joins five of the world’s largest mirrors previously cast for the Giant Magellan Telescope, one of the world’s largest and most anticipated extremely large telescopes.