Radiotelescope antennas of the ALMA ( Atacama Large Millimeter/submillimeter Array) project, in the Chajnantor plateau, Atacama desert, some 1500 kilometers north of Santiago, on October 1, 2011. The Atacama Large Millimeter Array (ALMA), the world’s largest radiotelescope, located in the mountains of northern Chile, has received its finishing touches. The device, whose completion has occasioned...