单词：jet propulsion unit
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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
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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
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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
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Helen : This is Real English from BBC Learning English. Im Helen. ZO : 大家好，欢迎收听今天的地道英语，我是刘佳。 Helen : Today were going to look at words and phrases that have recently become part of the English language. ZO : 要掌握地道的英语，重
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