遥远的星系隐约不清，为了研究它的形成和消亡，天文学家们必须捕捉从宇宙最遥远地方来到地球的难以控制的光子。最近研制成功一种能测定高能光子的新仪器，从而减轻了这项工作的难度。人们曾经用电耦合装置捕捉来自遥远天体的射线。这种装置由能把几乎所有冲撞它们的光子记录 Faraway galaxies are so vague that in order to study its formation and demise, astronomers must capture the uncontrollable photons that come to Earth from the most distant parts of the universe. The recent development of a new instrument capable of measuring high-energy photons has eased the difficulty of this work. People used electrical coupling to capture rays from distant objects. This device consists of a photon that records almost all of the collisions with them