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Giant Magellan Telescope: $2B Challenge Against ELT's Speed

1/19/2026

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Summary

Story summary

The Giant Magellan Telescope (GMT) aims to lead optical-infrared astronomy and strengthen the U.S. position.
Its projected cost is $2 billion and it faces funding and technology challenges.
The European Extremely Large Telescope (ELT) is advancing faster, with first light expected in 2029.
Dan Jaffe, president of the GMT's executive team, says the project could inspire future scientists and drive technological advances.

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Story summary

The Giant Magellan Telescope (GMT) aims to lead optical-infrared astronomy and strengthen the U.S. position.
Its projected cost is $2 billion and it faces funding and technology challenges.
The European Extremely Large Telescope (ELT) is advancing faster, with first light expected in 2029.
Dan Jaffe, president of the GMT's executive team, says the project could inspire future scientists and drive technological advances.