What is thought to be the world's largest ground-based observatory opened Wednesday in northern Chile, wielding unprecedented power to peer into the remotest regions of the universe.
Radio telescope antennas of the ALMA (Atacama Large Millimeter/submillimeter Array) project are seen in San Pedro de Atacama , Atacama desert, some 1500 km north of Santiago, on March 13, 2013. The ALMA, an international partnership project of Europe, North America and East Asia with the cooperation of Chile, is presently the largest astronomical project in the world.
The ALMA space observatory was inaugurated here on a desert plateau some 5,000 meters (16,400 feet) above sea level, at a ceremony attended by President Sebastian Pinera and other dignitaries.
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