Incredible Engineering Marvel: 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.

https://scitechdaily.com/incredible-...lan-telescope/

via International Skeptics Forum https://ift.tt/2PJCmvr