About HIROSHIMA NAGISA
About dark matter
About hypothetical particle
About pair annihilation
About elliptic galaxy
About astronomical telescope
About astronomical satellite
About WIMP
About dark matter annihilation
About γ線観測
About 矮小楕円銀河
About Cherenkov telescope array
About Fermi Gamma-ray Space Telescope
About りゅう座
About Nebulae
About ガンマ線
About 暗黒物質
About 探査
About 楕円銀河
About 広がり