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Professional Telescopes

ALMA Radio Array Gets to Work

High in the Chilean Andes, at the nosebleed altitude of 16,400 feet (5,000 m), the Atacama Large Millimeter/submillimeter Array has begun to probe the depths of the radio universe as never before.

Professional Telescopes

ALMA Dish Takes the High Road

The Chajnantor plateau in Chile's Atacama Desert has an elevation of more than 16,000 feet — harsh conditions for humans, but perfectly suited to the world's greatest array of submillimeter-wave radio telescopes, now under construction.

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