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Space
Space
Science
Samantha Mathewson

World's largest telescope gets its protective shell (photos)

A domed metal building in the desert.

The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the observatory's construction.

The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light telescope — is currently under development on the Cerro Armazones mountain in Chile's Atacama Desert. The mighty telescope is expected to see its "first light" by 2028.

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