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用Mp3背六级单词
Visionary Ideas Could Transform Future NASA Missions NASA, the U.S. space agency, has awarded $3 million in grants for 30 proposals which explore new ideas for Americas next generation space program. The proposals reflect wide-ranging visions of new
VOA标准英语2011年(八月)
Scientists Testing Space Propulsion by Light 科学家测试太阳能动力 Can the sun provide power for a spaceship to travel to the edge of our solar system? The answer may come from a small satellite. A Delta V rocket carried the satellite into s
2015年VOA慢速英语(六)月
NASA Working Toward Mission to Mars The head of the National Aeronautics and Space Administration, or NASA, said that the space agency is on track to land people on Mars in the 2030s. Charles Bolden is the administrator for NASA. He said that five ye
2015年VOA慢速英语(五)月
BEIJING, March 1 (Xinhuanet) -- A biotechnology(生物技术) company says it can produce diesel using the same ingredients(配制成分) that make grass grow, media reported on Monday. The Massachusetts company Joule Unlimited has created a genetica
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The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in
英语新闻