Pierre Auger Observatory Night Sky (image) Michigan Technological University Share Print E-Mail Caption At the Pierre Auger Observatory in Argentina, cosmic rays have been detected from far off galaxies. Credit Pierre Auger Observatory Usage Restrictions Please credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.