Large air fluorescence cosmic ray detector.
High Resolution Fly's Eye Experiment (HiRes)High Resolution Fly's Eye Experiment (HiRes)
2024-07-04
HiRes - the largest cosmic ray detector, and the only air fluorescence observatory in operation in the world at the start of the 21st Century. We are the world leaders in measuring the energy spectrum, composition, and arrival direction anisotropy of Ultra-High Energy Cosmic Rays (UHECR).