Atacama Large Millimeter Array



The Atacama Large Millimeter/submillimeter Array (ALMA) is a forefront astronomy facility in northern Chile now entering its operations in phase. ALMA is at an altitude of 5,050 meters and consists of an 11-mile-wide interferometric imaging array of 54 12-meter dish antennas and a compact array of 12 7-meter antennas. ALMA began early science operations in September 2011. ALMA explores the Universe in millimeter and submillimeter-wavelengths with unprecedented sensitivity, resolution, and imaging capability. In cooperation with the Republic of Chile, ALMA is a major international partnership of North America, Europe, and East Asia.

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