1·The telescope measured only two degrees of the electrified gas wobbling back and forth by picking up ultraviolet light.
望远镜通过紫外线只测量了两度来回摆动的带电气体。
2·NASA's Hubble Space Telescope has been following the surprising activity for 7 years, providing the most detailed ultraviolet-light view of the event.
NASA的哈勃太空望远镜已经跟踪了这种令人惊奇的现象有7年时间，为之提供最详尽的紫外线影像。
3·The Galaxy Evolution Explorer is an ultraviolet survey telescope.