Field of 250 Scintillation Detectors (IMAGE) University of Utah Caption Some 250 scintillation detectors sit in a field in Delta, Utah, while awaiting installation as part of the Telescope Array, a $17 million cosmic ray observatory under construction in the desert of western Utah. The observatory will include 564 scintillation detectors placed in a grid pattern over an 18-mile-by-22-mile area, as well as three buildings containing mirrors known as fluorescence detectors. Credit Robert Cady, University of Utah. Usage Restrictions None License Licensed content 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.