The Japan Aerospace Exploration Agency (JAXA) is Japan's national aero-space agency. Through the merger of three previously independent organizations, JAXA was formed on 1 October 2003. JAXA is responsible for research, technology development and the launch of satellites into orbit, and is involved in many more advanced missions, such as asteroid exploration and possible manned exploration of the Moon. JAXA launch their Epsilon vehicle from the Uchinoura Space Center and their H-II vehicles from the Tanegashima Space Center.
The ERGâ€‰ (Exploration of energization and Radiation in Geospace) project is a mission to study the Van Allen belts. The task is to elucidate how highly charged electrons are born while they generate and vanish repeatedly along with space storms caused by the disturbance of solar wind, influenced by space storms, and how space storms are developed.