 His exhibition at Ace, New York in 2002 was described as "stunning" by "Art in America".In 2003, Yamagata held an exhibition which was collaborated with NASA, “Art&SPACE exhibition-Hiro Yamagata and the world of NASA,” at Yokohama Seaport.His piece in this exhibition was held indoors and made by laser reflection of innumerable cubes hanging from the ceiling of two huge cubic structures which was surrounded by holograms.