Scientists Observe Most Distant Cosmic Explosion Ever Recorded 科学家们观察到有史以来最遥远的宇宙爆炸 Astronomers have detected the most distant explosion ever witnessed in the heav

发表于:2018-11-29 / 阅读(116) / 评论(0) 分类 VOA2005(下)--环境科学探索