High-energy cosmic rays

Abstract

In the past few years significant progress has been made towards identifying and understanding cosmic particle accelerators. Nevertheless some critical, long-standing questions remain unanswered, and the field is as active as ever. I review recent experimental results on high-energy (HE, > 1015 eV) cosmic rays (CR). I will focus on direct CR electron and positron measurements and indirect ultra-HE (> 1018 eV) CR measurements, and on Very-HE (> 100 GeV) gamma ray detections. Open questions and prospects are addressed, and proposed and upcoming experiments are outlined.