天文学家的新发现 The Discovery of Astronomers
英文学术资源发布 Resources for stuides in education
智力开发中文学校 Intelligence Develop Chinese School
生物医学文献知识发现 Knowledge Discovery in Biomedical Literature
网络中文医学信息开发 Internet Chinese medical information development
多年来，天文学家们受制于缺少合适的目标，以及望远镜力有不棣，直到2003年发现了一对特殊的脉冲星。
The lack of candidates and telescopic power had frustrated astronomers for years, until the discovery in 2003 of a particular pair of pulsars.
NASA的雷达天文学家周五发现了它的轨迹，并立即将它的位置精确至一公里以内的区域，比此前最好的估计精确了50倍。
NASA radar astronomers picked up its track on Friday and were immediately able to narrow its position to within one kilometer — 50 times better than their previous best estimate.
这一发现是由特拉维夫大学的热娜·巴卡那和哈佛大学的天文学家亚伯拉罕·勒布共同完成的，它显示了最遥远的类星体的最初一瞬间的剖面。
The finding, by Rennan Barkana of Tel Aviv University and Harvard astronomer Abraham Loeb, appears to be the first glimpse at the anatomy of the most distant quasars.
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