Auger Sept 2017 image 2.jpg

Auger Sept 2017 image 2.jpg

One of the four small white buildings housing the flourescence detectors of the Pierre Auger Observatory in Argentina.

One of the four fluorescence-detector buildings that are components of the Pierre Auger Observatory in western Argentina. The fluorescence detectors measure the faint ultraviolet light emitted by cosmic-ray air showers streaking through the atmosphere. These detectors are one of the two types of complementary detection devices used at the observatory. Comparing results from the different types of detectors helps scientists produce the most accurate results about the energy of the primary cosmic rays that reach our planet Earth. Find more information at https://www.auger.org/index.php/observatory/auger-hybrid-detector

IMAGE: The Pierre Auger Observatory