We also describe the basic principle of white dwarf cosmochronology and its application in defining the age of the Galactic disk, globular clusters, open clusters and Galactic halo.
介绍了白矮星宇宙纪
学研究的基本原理及其在银盘、球状星团、疏散星团以及银晕

定方面的应用
状。
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济学人(汇总) For the next 500 million years the young Earth continued to be pelted relentlessly by comets, meteorites, and other galactic debris, which brought water to fill the oceans and the components necessary for the successful formation of life.
在

5亿年里,年轻
地球继续受到彗星、陨石和银河系里其他碎块
无情撞击。这个过程产生了蓄满海洋
水,产生了成功形成生命所必不可少
成分。
In 2005, just a few months after switching on the telescopes, a gamma ray outburst from an active galactic nucleus tickled the MAGIC mirrors, giving Robert his first tantalizing glimpse down to the smallest place in the universe.
2005 年,在开启望远镜仅仅几个月
,来自于一个活跃星系核心
伽玛射线爆被 MAGIC 望远镜捕捉到,这使得罗伯特第一次窥见了宇宙最小
地方。