galaxies

If that were true for galaxies, the most distant visible objects in the sky would be receding at velocities just shy of the speed of light.

如果这对于星系也是正确的，那麽天空中可见的最遥远物体，就会是那些远离速度仅仅略小于光速的天体。

In 2001, two separate teams showed that many smaller galaxies that don't have bulges also do not seem to contain significant black holes.

在2001年，两个不同的团队发布了研究结果，展示了许多小一些的并且没有中心凸出的星系看上去也没有包含着重要的黑洞。

This pair of galaxies illuminates the distribution of galactic dust beyond the visible arms of a spiral galaxy.

这两个重叠的星系发出的光照亮了一个螺旋星云的一条可见的旋臂上分布的尘埃。

He began examining nearby galaxies with a 10-inch refractor to see whether any stars had flared up.

他用口径10英寸的折射望远镜巡视邻近的星系，查看是否有恒星已经闪亮。

Astronomers measure how much dark matter lies in galaxies by a fluke of physics called gravitational lensing.

天文学家通过一种叫做引力透镜效应的物理现象来测算星系中暗物质的质量。

Large spiral galaxies like the Milky Way seem to have two or three per century.

像银河系那样螺旋状的大星系每世纪似乎会出现两到三个。

In another part of the cluster there seem to be galaxies and dark matter, but no hot gas.

在星系团的其他方向，主要是明亮星系和暗物质，几乎没有气体。

Hubble captured a spectacular pair of galaxies engaged in a celestial dance. The galaxies will eventually merge into a single giant galaxy .

哈勃拍摄到两个互相碰撞的星系，这两个星系最终会合并成一个星系。

As a bonus, some of those supersymmetric particles might turn out to be dark matter, the unseen stuff that seems to hold galaxies together.

此外，其中的一些超级对称粒子可能会变成暗物质，似乎是那些看不见的东西将星系联系在了一起。

Black holes millions or billions times as massive as the sun reside at the heart of most galaxies, including our own.

黑洞的质量是太阳质量的数百万倍或者是数十亿倍，它们多数位于星系的中心，也包括了我们所处的星系也在其内。

The Small Magellanic Cloud, and its companion galaxy the Large Magellanic Cloud, are the two galaxies where this type of study is possible.

小麦哲伦星云和其伴生的大麦哲伦星云，是在可能进行这种研究的两个星系。

Supernovae studies have allowed scientists to see that dark energy has been impacting galaxies since as far back as nine billion years ago.

有关超新星的研究使科学家了解到，追溯到90亿前暗能量就已经开始影响星系。

The universe seems to be rapidly expanding its component galaxies moving ever farther apart.

宇宙似乎在膨胀，它的组成部分――星系互相离得越来越远。

The discovery that super massive black holes are at the core of most, if not all, galaxies was one of the Hubble's greatest achievements.

哈勃空间望远镜最大的成就之一就是发现在大多数星系的中心都有超巨黑洞。

Seeing and analysing such small galaxies at such a great distance is at the very limit of the capabilities of the most powerful telescopes.

看到和分析如此小又处在如此遥远地方的星系已经快到这些最强大望远镜的能力极限了。

At first glance, it looks as if a smaller galaxy has been caught in a tug-of-war between a Sumo-wrestler pair of elliptical galaxies.

乍一看，这一景象好像是一个小星系置身于一对重量级椭圆星系的拔河比赛中。

If the rest of the human race could learn to fail like this, it would soon abolish war and colonise distant galaxies.

如果人类当中别的群体都能学会像这样“失败”，那么人类将很快唾弃战争，而是去征服遥远的星系了。

Watson pondered for a minute. " Astronomically , it tells me that there are millions of galaxies and potentially billions of planets. "

瓦特森沈思了一分钟，「就天文学而言，它告诉了我那儿有数以百万计的星系和潜在著数以千万计的星球。」

Michelson said the Fermi telescope has also discovered many of what he calls "active galaxies" centered around a massive black hole.

迈克尔逊称费米望远镜还观测到许多围绕大质量黑洞的天体，称之为“活跃星系”。

The first option is that the galaxies were separated from the dark matter through a complex set of gravitational " slingshots . "

第一种可能是，这些星系通过一系列复杂的引力弹弓效应脱离了暗物质。