Last week, astronomers stationed at the Atacama Large Millimeter/submillimeter Array (ALMA) Observatory in northern Chile awoke to a rare sight: fresh snow had fallen in the world’s driest nonpolar ...
When science organizations in the United States, Europe, and Japan dreamed up a new, ultra-powerful millimeter and submillimeter space observatory in the 1990s, they knew they couldn't just build it ...
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One of the world’s most advanced telescopes just went dark after snow hit a place where it barely ever rains
In late June 2025, a rare weather event disrupted operations in one of the most arid regions on Earth. A snowstorm swept across northern Chile’s Atacama Desert, temporarily shutting down the Atacama ...
Snow fell at an elevation of 9,500 feet in the Atacama Desert of Chile, the world's driest nonpolar desert. ALMA / Felipe Besser Last week, astronomers stationed at the Atacama Large ...
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