天体的

"A celestial cyclone, a pulsar at the heart of the Crab Nebula fires off jets of high-energy particles in this Chandra image."

在这幅由钱德拉（NASA的轨道X射线天文台）所发回的照片中，处在蟹状星云中心的一颗脉冲星正发射出一股高能量的粒子形成了天体飓风。

Debra Fischer and her colleagues will publish their findings in an upcoming edition of Journal.

Debra Fischer和她的同事将把他们的研究成果刊登在即将出版的《天体物理学杂志》的。

This book is a manual for the course of electrodynamics and theory of relativity. It is recommended primarily for students of mathematical departments.

由于网络上的天体物理和宇宙学方面的资源匮乏，所以本人在网络上搜集了这方面的资料和大家共享，这次发布的资源中也有一部分物理方面的电子书。

The Berkeley Geochronology Center is a non-profit scientific research institution dedicated to establishing the history of the Earth, its various inhabitants, and its interactions with the rest of our Solar System, throughout the 4.6 billion years of our planet's existence.

Berkeley地质年代学中心是一个非盈利性的科研机构，致力于建立46亿年前地球形成以来，地球的历史、地球上各种繁衍物种的历史，以及地球与太阳系其它天体相互作用的历史。

But astronomers have long been aware of the huge outer objects and its satellites, natural gas hydrate is an important chemical compounds that are also likely to exist, including Halley's comet, including the comet's head.

但天文学家们很早就已经意识到，在巨大的外层天体及其卫星中，天然气水合物是重要的化合物，这种化合物也很可能存在于包括哈雷彗星在内的彗星的头部。

"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。

Specifically, there are three kinds:(1) constant variation method to track two-body problem the root number of variables to establish perturbed equation;(2) coordinate perturbation method in order to track objects in real position and the location of an intermediate orbit perturbation differential equation as a variable to establish;(3) transformation theory, through a series of canonical transformation to reduce the order of the equations of motion to make it a more simple form.

具体做法有三种：（1）常数变异法，以二体问题轨道根数为变量建立摄动方程；（2）坐标摄动法，以天体在实际轨道上的位置与某一中间轨道上的位置差作为变量建立摄动方程；（3）变换理论，通过一系列正则变换，降低运动方程的阶数，使其具有更简单的形式。

In the text, the fundamentals of the VLBI observation and the whole process of data reduction, together with BL Lacertae objects, their properties and Unified Schemes are synthesized, analysed and reviewed, adding to some comprehension and opinion of myself.

本文对BL Lacertae型天体、它们的性质和统一模型，对VLBI观测的基本原理和数据后处理的整个过程进行了整理、分析和评述，并加上自己的一些理解和看法。

Like the common household items still life painters often choose for their subjects, the clouds of gas, dust, and hot stars pictured here are also commonly found in this setting - a massive, star-forming molecular cloud in the constellation Monoceros .

像常见的家用物品画作一样，天体静物画家往往选择的项目如下：气体云，尘埃，和普遍存在的炙热恒星---镶嵌在麒麟座中一个大规模的恒星形成分子云。

Richard says he leads trips because he has the money, and because otherwise people would never learn how comfortable naturism is.

Richard 说他组团的原因不止是因为他有足够的经济实力，更是因为如果没有这样的活动，人们将永远无法理解天体状态下那种无拘无束的感觉。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。