09-10-29 Astronomers have confirmed that an exploding star spotted by Nasa's Swift satellite is the most distant cosmic object to be detected by telescopes. 天文学家已经证实，美国航空航天局的威夫特卫星拍摄到的一颗爆发星是天文望远镜探测到的最远的宇宙星体。 Th...