PlummetingUSSatellitetoHitEarthFriday NASA launched the Upper Atmosphere Research Satellite (UARS) 20 years ago this month. And now that bus-sized satellite is plunging toward Earth. Mark Matney, an orbital debris scientist at NASA's Johnson Space Ce

发表于:2019-01-13 / 阅读(42) / 评论(0) 分类 VOA标准英语2011年(九月)

Space Shuttle's End Prompts Doubts About NASA's Future One day after the landing of Atlantis ended the 30-year space shuttle program, the company that ran shuttle operations for the U.S. space agency NASA is dismissing 1,510 employees. The end of the

发表于:2019-01-13 / 阅读(34) / 评论(0) 分类 VOA标准英语2011年(七月)

China's first domestically-developed heavy transport aircraft, the Y-20, successfully took off for its first test flight on January 26. Now, Y-20's trial flight has entered a new phase. Our reporter Li Dong has the details. Different from the previou

发表于:2019-01-19 / 阅读(57) / 评论(0) 分类 英闻天下

A city in central China now has free parking spaces reserved for drivers who need to answer the call of nature while on the road. 中国中部一座城市现在出现了免费停车位,专为需要在路上去洗手间的司机保留。 Spaces have

发表于:2019-02-05 / 阅读(49) / 评论(0) 分类 英语新闻

They were proposed almost exactly 100 years ago by Albert Einstein based on his theory of general relativity but it was only in February 2016 that scientists proved the existence of gravitational waves. And now China is starting work on the worlds hi

发表于:2019-02-06 / 阅读(67) / 评论(0) 分类 英语新闻

So here's our little solar system, as we pull away from our melted planet here. 我们把视线从融化了的行星里拉远,来到我们的小小太阳系。 We actually have a couple of other planets in this solar system. 原来在这个太阳系里

发表于:2019-02-21 / 阅读(46) / 评论(0) 分类 TED演讲教育篇