A precipitous panorama

A herd of Atacama Large Millimeter/submillimeter Array radio telescopes gather on the horizon of this panorama from the Chajnantor Plateau in northern Chile. The 12-metre telescopes, though individually immense, are dwarfed by desert's mountainous peaks, visible to the upper right. The distinctive conical volcano Licancabur (see potw1240) can be seen in the far distance.