The Giant Magellan Telescope today announced the successful installation of one of its completed 8.4-meter-diameter primary ...

The Giant Magellan Telescope (GMT) will weight 2.4 million-pounds and may revolutionize our understanding of the universe. It uses seven giant mirrors to collect and focus the light to a point and ...

In June 2024, the Giant Magellan Telescope's enclosure passed its final design review and is now ready for construction in Chile. The 65-meter-tall enclosure will be one of the largest mechanized ...

Giant Magellan Telescope The GMT is one of several large ground-based optical telescopes in development. Situated high and dry in Chile, it will have seven primary mirror segments, each over 26 ...

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Construction began Wednesday, Nov. 11 on what could become the world's largest optical telescope. The 22-story Giant Magellan Telescope (GMT), now being built in a desert atop a mountain in Chile ...

Here's how to watch all the total lunar eclipse action unfold live and online so you don't miss a second of the dramatic "Blood Moon" on March 13.

As the agency's SPHEREx space telescope and PUNCH solar mission rode toward their orbital stations tonight (March 11) at ...