天体的

"Microbes that produced methane from hydrogen and carbon dioxide were one of the earliest forms of life on Earth," notes Carl Pilcher, Director of the NASA Astrobiology Institute which partially supported the research.

&微生物产生的甲烷，氢气和二氧化碳是最早形式的地球上的生命，&注意到卡尔尔彻主任美国宇航局天体生物学研究所的研究部分支持。

"The fact that the community contains only one species stands one of the basic tenets of microbial ecology on its head," says Carl Pilcher, director of the NASA Astrobiology Institute, who was not involved in Chivian's DNA analysis but whose colleagues made the initial discovery that there were microbes living in this particular fissure two years ago.

美国宇航局天体生物学协会主管卡尔·皮尔彻说，&事实上，这个细菌群落仅有一种细菌存在，构成该微生物系统的基础。&据了解，皮尔彻并未参与奇维安的DNA分析研究，但是皮尔彻带领的研究小组在两年前最初发现微生物曾生存于这种特殊的地下裂沟中。

So far, astronomers have not dectect the exact quantity of superdensity clusters of stars," said Loeb,"now we know what results of detectation to be expected,and we will start a new type of search of celestial bodies on the basis of detective of universe at present.

罗卜 说：&迄今为止，天文学家仍无法探测到在银河系周围存在紧凑高密度恒星簇的具体数量，目前我们知道应当期望得到什么样的探测结果，我们将基于现有的太空勘测展开新一类型的天体搜索。&

The history and the present conditions of the atomic physics are synoptically reviewed; highly ionized atomic systems are frequently met in the study of the experiment physics, astrophysics and nuclear physics, the study of them is of great benefit of the development of the related experiment and theoretic physics.

简要地回顾了原子分子物理学发展的历史及现状，特别阐述了高离化原子，因为高离化原子在实验物理、天体物理以及核物理中经常遇到，所以研究它们的性质可以促进相关的实验物理以及理论物理的发展。

These celestial atlases also contained diagrams of the solar system that reflected both contemporary and ancient cosmological systems, thus tracing the development of man's view of his place in the universe.

这些天体地图集还包含了太阳系的图示，那些图片中既反映了现代和古代的宇宙论哲学，从而是一副追查人对他在宇宙中的地位看法的发展图。

It currently focusses on the Solar System and lets you visit all of its planets, major moons and a vast collection of smaller bodies in realtime 3D.

目前它主要集中在太阳系，可以让你拜访它的许多行星，主要的卫星，以及很多更小的实时3D环境中的天体。

They comprised astronomical kaleidoscopes exhibiting the twelve constellations of the zodiac from Aries to Pisces, miniature mechanical orreries, arithmetical gelatine lozenges, geometrical to correspond with zoological biscuits, globemap playing balls, historically costumed dolls.

161是的。就是要把纸枪、橡胶浮囊、掷骰子游戏和弹弓排斥出去；其中包括展示白羊宫乃至双鱼宫这十二宫星座的天体万花筒、小型机械装置的太阳系仪、算术用菱形果子冻、相当于动物饼干的几何图形饼干、游戏用地球仪皮球、身穿历史服装的玩偶。

The team has chosen two very different alien environments in which to place their extraterrestrials, aurelia and blue moon.

为此，研究小组选择了两个完全不同的环境作为外星生物的&家&。它们分别是&奥里里亚&和&蓝月亮&——由计算机模拟出的两个可能在银河系中存在，并可能孕育生命的外星天体。

UHECRs are particles with energy above , which may play an important role in modern high-energy physics, particle physics and cosmology. However, the origin and the composition of UHECRs are still enigmas. Beginning

其成分和形成机制的研究是宇宙线物理的主要内容之一，对高能天体物理、粒子物理和宇宙学等相关学科具有重要意义，而且很可能是揭示某些新的基本物理规律的突破点。

We are in irreversible decline, says Sandra Faber, a professor of astrophysics at UC Santa Cruz who has inadvertently become a mouthpiece for a fed-up faculty.

加州大学圣塔克鲁兹分校的天体物理学教授桑德拉·法贝说&我们对现在的颓势无力回天&这话让她不经意间道出了深陷烦恼的教职工们的心声。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了