NASA's Upper Atmosphere Research Satellite, or UARS, is expected to reenter the atmosphere at the end of September.
美国国家航空和宇宙航行局的高层大气研究卫星，简称UARS，预计将于九月末返回大气层。
NASA's Upper Atmosphere Research Satellite will fall out of orbit soon, with large pieces perhaps reaching Earth's surface, according to NASA's Nick Johnson at a telephone press conference.
美国国家航空和宇宙航行局发言人尼克·约翰逊在一个电话新闻发布会中表示，美国国家航空和宇宙航行局的高层大气研究卫星即将脱离轨道，大片的残余物可能会落到地球表面。
The research, federally funded by the National Science Foundation, could improve the safety and reliability of spacecraft that operate in the upper atmosphere.
此项研究由美国国家科学基金会拨款，旨在提高航天器在高层大气中运行时的安全性和可靠性。
The research, federally funded by the National Science Foundation, could improve the safety and reliability of spacecraft that operate in the upper atmosphere.
此项研究由美国国家科学基金会拨款，旨在提高航天器在高层大气中运行时的安全性和可靠性。
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