NRAO ALMA Explorer Learn and Explore NSF AUI
Visit ALMA and its Chilean environs with exclusive narrated and hosted video tours.
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Center of the Array

Working together, the separate ALMA telescopes become one giant telescope up to 11 miles (16 km) across. That's a huge, light-gathering eyeball!

At that size, ALMA can pinpoint small, hidden details deep inside galaxies or within giant star forming regions, making it one of the most powerful telescopes ever made.

In the heart of the array sits the 16 East Asian MELCO telescopes working together like one telescope of 492 feet (150 m) across. Called the Morita Compact Array, these specialized 7-meter telescopes can map the Universe's giant, wispy structures, making certain that ALMA never misses the forest for the trees.