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[时事新闻] 卫星图像显示朝鲜准备试射导弹
一家卫星图像公司说,新图像显示朝鲜导弹发射场的活动增加,朝鲜有可能在数星期内试射一枚远程导弹。2012-11-28 编辑:ivy
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[科学美国人60秒综合系列] 60秒科学:小学生给卫星命名
Two washing-machine-sized satellites recently went into orbit around the moon. In March, they’ll start to gather detailed data about the quirks of the moon’s gravity. The working names fo2012-03-02 编辑:beck
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[科技资讯] 德旧卫星差点坠落北京
Close friends and family are more likely than acquaintances or strangers to catch someone yawning, Livescience.com reported.[qh]据热点科学网站报道,一项新的研究表明,一个人如果打了一个哈欠,他的亲密朋2012-02-02 编辑:jasmine