Newslink: 'Hard-Rock Excavation' Begins for Giant Magellan Telescope in Chile
The Giant Magellan Telescope (GMT) has now entered the "hard-rock excavation" phase, which will make way for the huge structure's foundations, leaders of the $1 billion project announced on Tuesday (Aug. 14).
https://www.space.com/41532-giant-magellan-telescope-hard-rock-excavation.html