单词:
单词: 相关文章
NASA, the National Aeronautics and Space Administration was established on July 29th, 1958. It was responsible for the USAs space exploration programme. NASA has changed the way we live here on Earth, and the way we look at the universe. President Dw
This is Scientific Americans 60-Second Science. Im Steve Mirsky. This will just take a minute. Computer status report. After its ongoing Mars missions, NASA will concentrate less on the red planet, and more on the solar system's other planets and moo
Disappointing End to NASA Test of Mars Landing Device NASA火星登陆测试设备的结果令人失望 WASHINGTON The U.S. space agency's test run of a Mars landing system came to a disappointing end Monday when the saucer-shaped vehicle's parachute
尝试新概念 NASA火星着陆器遇挫 The U.S. space agency's test run of a Mars landing system came to a disappointing end Monday when the saucer-shaped vehicle's parachute failed to unfurl high over the Pacific Ocean. 美国太空总署(NASA)
By David McAlary Washington 03 May 2007 Astronaut Walter M. Schirra Jr. is shown posed for a studio portrait in his space suit in this June 1962 file photo One of the first U.S. astronauts and only the fifth American in space, Walter Schirra, has die