The 6th IAA Symposium on Small Satellites for Earth Observation will be held during 4/23~4/26 in Berlin, Germany. Dr. Lance Wu, Director General of NSPO, will serve as an IAA co-chairman at the IV Study Group 5 (SG4.5) of IAA Commission, which mainly discuss the theme of “Retu to the Moon－Hitchhiking to the Moon and beyond”.