galaxies

Explanation: Two galaxies are squaring off in Virgo and here are the latest pictures.

说明: 两个星系在室女座内遭遇,这是最新拍摄到的影像.

This law is known to hold true for galaxies at a distance of at least several billion light years.

据知，这条定律同样适用于距离至少几十亿光年之远的星系。

To explain this, they hypothesise that galaxies must contain a great deal of missing matter which cannot be detected

为了解释这一点，他们假定各星系一定包含了大量无法探测到的不明物质。

This has led scientists to speculate on the existence of other galaxies.

这就使得科学家推测还有其他星系存在。

The Hubble Space Telescope has photographed many pairs of galaxies colliding.

哈勃太空望远镜拍摄了很多对撞在一起的星系。

We still don't know how many galaxies there are in the universe.

我们还不知道宇宙中有多少个星系.

Galactic surveys show that distant galaxies are not as evenly distributed in space as theory predicts.

对银河系的研究表明，遥远星系在太空中的分布并不像理论所预言的那样均匀。

the Kuiper belt; Oort cloud; Alpha Centauri star; Perseus Arm; Milky Way galaxy; other nearby galaxies including theAndromeda galaxy; the cosmic web; cosmic microwave radiation; and, at the very edges of the image, quark-gluon plasma produced by the Big Bang.

环绕着的是内外环行星、柯伊伯带、奥尔特云、半人马座阿尔法星系、英仙座星系、银河系，其它附近星系包括有仙女座星系，还有宇宙网、宇宙微波辐射，以及最边缘大爆炸产生的夸克胶子等离子体。

On the other hand, recent discoveries of the gigantic structures in the universe, such as the Great Wall, the Great Attractor and the periodic distribution of redshift of galaxies, seriously challenge the standard view of cosmic model.

同时对宇宙中物质大尺度结构探索中的新发现，例如宇宙长城、巨大吸引物、星系红移分布的周期性等，又对标准的宇宙学模型提出了严峻的挑战。

Dr. Sobral and his colleagues were using the Very Large Telescope of the Southern Observatory in Chile and the W. M. Keck Observatory in Hawaii, among other big telescopes, to build on an earlier search for glowing clouds of hydrogen that might represent very early galaxies.

索夫拉尔和他的同事利用南方天文台在智利设置的甚大望远镜（Very Large Telescope）、夏威夷的W·M·凯克天文台（W.M.Keck Observatory）及其他大型望远镜，继续之前寻找由氢组成的发光星云的工作，这些星云可能代表着早期的星系。

Quasars are the highly energetic cores of distant galaxies.

类星体是遥远星系的极为活跃的核心体.

They turned their telescopes towards other nearby galaxies

他们把望远镜转向附近其他星系。

By measuring the motion of the galaxies in a cluster, astronomers can infer the cluster's mass.

通过测量星系在一个星系团内的运动，天文学家们可以推定这个星系团的质量。

Ground-based instruments such as the giant Keck telescopes have amassed statistics on distant ( and therefore ancient) galaxies.

地面望远镜，如巨大的凯克望远镜，已经累积了远处（所以是古老的）星系的大量统计资料。

the idea that we are the culmination of fifteen billion years of cosmic evolution across trillions of galaxies.

认为我们是数以万亿计的星系150亿年宇宙演化的最终结果的观念

They reported that younger galaxies should be significantly bluer.

据他们报道,较年轻的星系颜色应该显著地偏兰.

They turned their telescopes towards other nearby galaxies.

他们把望远镜转向附近其他星系。

There is a curious feature in the spectra of spiral galaxies.

在旋涡星系的光谱中有一种奇妙的特征.

While studying the Coma galaxy cluster, he found that the galaxies'gravity alone was much too small to hold the cluster together.

他在研究后发座星系团的时候，发现星系本身的引力作用太小而不足以维持星系团的成型。

Spiral galaxies are considered to be gravitationally bound configurations of stars.

旋涡星系被认为是由恒星组成的引力束缚系统.

Small ripples in the temperature of the cosmic background radiation are thought to be evidence of slight fluctuations in the density of the early Universe, which resulted in the formation of galaxies.

而宇宙背景辐射的气温波动则被认为是宇宙早期密度轻微变化的证明，正是这种密度变化才促使了星系的形成。

As the universe expands, these galaxies stay the same size.

当宇宙扩张之时, 星系的大小保持不变.

The universe as a whole contains billions of comparable galaxies.

整个宇宙,包含亿万个可以比拟的银河系.

Most galaxies occur in pairs or in small multiple groups.

大多数星系成双或几个成一小群.

…the idea that we are the culmination of fifteen billion years of cosmic evolution across trillions of galaxies.

认为我们是数以万亿计的星系 150 亿年宇宙演化的最终结果的观念

Other galaxies are placed irregularly in space.

其它星系不规则地位于太空中.

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.

Cosmologists are debating the possibility that turbulence causes galaxies to form.

宇宙学家正在争论湍流导致星系诞生的可能性.

Two galaxies perform an intricate dance in this new Hubble Space Telescope image.

在这张新的哈勃太空望远镜的图象中，两条天河交缠成一段舞蹈。

To explain this, they hypothesise that galaxies must contain a great deal of missing matter which cannot be detected.

为了解释这一点，他们假定各星系一定包含了大量无法探测到的不明物质。