国家地理-2008-03-20 Rho Ophiuchi Cloud 璀璨的星云

Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

发表于:2018-12-05 / 阅读(60) / 评论(0) 分类 国家地理2008年

国家地理-2008-04-10 Women in Space 太空女性

In 1983, trailblazing astronaut Sally Ride blasted out of Earth's orbit, opening the world of space travel for women. Watch the stories of other pioneers who have followed her path to the stars. Since the US space program began in 1958, NASA has ach

发表于:2018-12-05 / 阅读(27) / 评论(0) 分类 国家地理2008年

国家地理-2008-04-08 Coastal Cleanup 净滩大行动

Even as the first day of autumn hovers over American shores, traces of summer linger. So, every year at this time, nearly half a million people step forward to help, to volunteer in an international coastal cleanup and the results can be staggering.

发表于:2018-12-05 / 阅读(33) / 评论(0) 分类 国家地理2008年

国家地理-2008-04-06 Mission to Mars 火星任务：巨大的心理考验

Cramped quarters, no privacy, and the stress of working together every day. Psychology, more than aerospace engineering, may be the key to sending human crews to Mars. This is Mars on Earth, a station that was built to help us learn how to live on t

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国家地理-2008-03-25 Newborns of Jasper 贾斯珀国家公园的新生儿

At Jasper National Park, high in the Canadian Rockies, spring is a full, fragrant bloom: food is plentiful and new life emerges. But spring does not come easily, and for newborn youngsters dangers abound. Many must learn to run first and ask questio

发表于:2018-12-05 / 阅读(31) / 评论(0) 分类 国家地理2008年
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