Study of Dark Matter / 宇宙暗黒物質の研究 (研究期間：平成19年度〜平成23年度, Term of Project : 2007 - 2011)
Kamioka Observatory, Institute for Cosmic Ray Research, Univ. of Tokyo
All images & copy; 1989-2008 Satoru Yoshioka Photography/Art. All rights reserved
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