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By Paul Sisco Washington 19 March 2008 The planet Saturn has long fascinated astronomers because of its distinctive rings and multiple moons. NASA's Cassini spacecraft visited one of Saturn's moons last week, collecting samples, data and pictures of
VOA标准英语2008年（三月）
launch a satellite 发射卫星 launch pad 发射台 multistage rocket 多级火箭 second stage 第二级 third stage 第三级 orbit 轨道 artificial satellite 人造卫星 Telstar 通信卫星 ante
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Wk 40 (4 October 1957) First Satellite Launched Into SpaceThis Week in HistoryThe USSR launches Sputnik 1, the first artificial satellite to orbit the earth. In 1957, the world was surprised to see the Soviets launch the first satellite into orbit, w
英语新闻与报道—News and Reports
launch a satellite 发射卫星 launch pad 发射台 multistage rocket 多级火箭 second stage 第二级 third stage 第三级 orbit 轨道 artificial satellite 人造卫星 Telstar 通信卫星 ant
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THE MAKING OF A NATION - American History: Man on the Moon STEVE EMBER: Welcome to THE MAKING OF A NATION American history in VOA Special English. I'm Steve Ember. (MUSIC AND SPUTNIK SOUNDS) On a cold October day in nineteen fifty-seven, the Soviet U
2012年VOA慢速英语(七)月
China plans to launch Chang'e-4 lunar probe to the dark side of the moon in 2018, as announced by China's State Administration of Science, Technology and Industry. Liu Jizhong, director of the lunar exploration program and space engineering center, s
2016CRI中国国际广播电台