星系

Active galaxy Centaurus A is likely the result of a merger with a spiral galaxy some 100 million years ago.

活动星系半人马座A可能是1亿年前与一个旋涡星系合并而成。

The extension direction of cluster galaxies is consistent with the position angle of the central cD galaxy, which observationally supports the hierachical model of cluster formtion.

团星系的空间延展方向和中心 cD 星系的方位角一致，在观测上支持了等级成团理论。

The development of efficient fusion drives made possible the first widespread exploration of Terra's star system. By 2050, the Alliance had scientific outposts throughout the Sol system, had dispatched unmanned interstellar probes to Tau Ceti, Epsilon Eridani, and Epsilon Indi.

核融合动力的发展使得对Terra行星所在星系的广泛探索成为可能。2050年，联盟已经在整个太阳系建立起了科学观察站，并向鲸鱼座τ星，波江座ε星和印地安座ε星等星系发射了无人星际探测器。

Astronomers studying the Circinus galaxy are seeing evidence of a powerful AGN at the center of this galaxy as well.

研究圆规座星系的天文学家们同样也发现图片中显示的这个星系有AGN。

In the early universe, collisions—and hence quasars—occurred more often because galaxies were packed much more closely together.

在早期宇宙中，星系碰撞以及因此而形成类星体的情况发生得更加频繁，因为当时星系之间的距离要接近得多。

One would expect a high correlation of galaxies at small separation distances (due to the clumpy nature of galaxy formation) and a low correlation at large differences.

人们期望星系在小的间距上有强的相关性(由于星系形成的结团性质)而在大尺度的距离上相关性则比较低。

Now, Hubble observations of the radio galaxy MRC 1138-262, nicknamed the "Spiderweb Galaxy" show dozens of star-forming satellite galaxies as individual clumpy features in the process of merging.

现在，哈勃对射电星系 MRC 1138-262的观测显示许多正在产星的卫星星系作为独立的团块处在合并的过程中。

Some neighboring groups and clusters beyond the virial region of A2199 are roughly colinear, suggesting the presence of an extended (8.0 h-1 Mpc) filament of galaxies and/or dark matter. The identification of this filament provides a direct support of hierarchical model of structure formation.

这似乎预示着，从核区的～30以内到～5.5°的特大尺度，由于引力作用而显示出线性排列方式，揭示了一个延展到8.0 h-1Mpc的由星系或暗物质组成的纤维状结构，进一步支持了星系形成的等级结构模型。

Located 300 million light-years away in the constellation Coma Berenices, the colliding galaxies have been nicknamed "The Mice" because of the long tails of stars and gas emanating from each galaxy.

这对正在碰撞的星系有个外号叫"老鼠星系"，因为他们拖着由星体和气体散发形成的长长的尾巴。

Look for a small nebular patch north-east of bright star Deneb in the constellation of Cygnus .

在这个小星系东北面寻找，就能找到一颗位居 Cygnus 星系群的闪亮的星星 Deneb 。

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。