Pierre Auger Observatory

Two Observatories

The Auger Observatory will have two sites, one in the southern hemisphere and one in the north. This allows scientists to view ultra-high energy cosmic rays over the entire sky. The southern site near the city of Malargüe in Mendoza province, Argentina has been under construction since 2000 and completion is expected in 2007. The northern site is planned for southeast Colorado, USA, near the city of Lamar.