China's first astronaut to walk in space, waved to its countrymen and then uttered these words: Greetings to all the people in China and the world. Back on earth, they responded with pride. I love China. I'm proud to be Chinese, says this man and man

发表于:2018-12-11 / 阅读(41) / 评论(0) 分类 万花筒2008年

Floating free in the hostile vacuum of space, astronauts push the boundaries of exploration. Join them on an incredible journey as spacecraft Voyager explores the solar system. From planetary orbit, the earth and heavens look serene. But the vacuum

发表于:2018-12-30 / 阅读(53) / 评论(0) 分类 国家地理2008年

1983年4月7日,美国"挑战者"号航天飞机在太空飞行期间,两名航天员在太空自由自在地飘飞行走了3个多小时.这是人类首次不系绳索自由地在太空行走. 航天员为何能在太空行走呢?原

发表于:2019-01-02 / 阅读(59) / 评论(0) 分类 60秒科学

在21日的太空行走中,阿卡巴误将一个螺钉安装颠倒了,致使空间站托架左侧的设备储存平台只能部分展开。23日,阿卡巴和阿诺尔德用锤子反复敲打这个螺钉,虽然最终让螺钉松了口,但平台仍不能完全展开。二人最后只得放弃。根据地面控制中心的指令,宇航员用绳索固定了平

发表于:2019-01-02 / 阅读(106) / 评论(0) 分类 国外媒体新闻

A Chinese astronaut has made the historic first step in outer space for his country. With the successful spacewalk, China has become the third country, after the United States and Russia, to do so. 一名中国宇航员为中国向外太空迈出历史

发表于:2019-01-19 / 阅读(45) / 评论(0) 分类 VOA双语新闻 2008年9月

It's morning in the Kalahari, and this female cheetah has discovered that her cubs are growing ever more independent. She calls for them, but theyve already gone out exploring. And theyve discovered a wounded gemsbok that may have escaped from a lion

发表于:2019-01-22 / 阅读(192) / 评论(0) 分类 自然百科2008年

CAPE CANAVERAL Two American astronauts will venture outside the International Space Station Monday to stow a failed coolant pump and extend the outpost's Canadian railway. Wearing protective spacesuits in a deadly vacuum(真空) environment, Stephen

发表于:2019-02-05 / 阅读(122) / 评论(0) 分类 英语新闻