星系往往聚集形成星团。
如果NGC 4258的中心是一个星团，恒星之间的距离会非常近，以至于在很久以前单个恒星之间的碰撞就会把星团撕裂。
If the center of NGC 4258 were a star cluster, the stars would be so closely spaced that collisions between individual stars would have long ago torn the cluster apart.
球状星团曾经统治着银河系。
球状星团中有很多宇宙中最古老的恒星。
Globular clusters have some of the oldest stars in the universe.
该星团嵌在一个约110光年大的星云内。
The star cluster is embedded in a nebula, which spans some 110 light-years.
星团中最明亮的微红色恒星是远古的红巨星。
The brightest reddish stars in the cluster are ancient red giants.
望远镜照片展示这个壮观星团的数十万恒星。
Telescopic views reveal the spectacular cluster's hundreds of thousands of stars.
它展现了向着星团中心迅速增大的恒星密度。
It shows the dramatic increase in density of stars toward the cluster's center.
这颗远距双星有可能是在星团解体时被捕获的。
The origin of wide binaries may be capture during cluster dissolution.
结果表明星团将不断成长为一个现代的星系团。
The results indicate the cluster will keep growing into a modern city of galaxies.
御夫座北部有大量明亮的星团和星云。
Brightclusters and nebulae abound in the northern constellation of Auriga.
因此，研究球状星团可以向我们揭示银河系的历史。
Studyingglobular clusters therefore tells us about the history of our galaxy.
这个星系看起来这么好是因为它藏在一个星团后面。
The galaxy looks so good because it lies behind a galaxy cluster.
这个‘指环’可能是在两个星团发生碰撞时形成的。
The ring may have been formed when two galactic clusters collided.
星团中演化了的红巨星、蓝巨星显现出黄、蓝色调。
The cluster's evolved red and blue giant stars show up in yellowish and blue tints.
疏散星团，通常来讲，结构松散并且在几亿年中持续分散。
Open clusters, in general, are loosely bound and they disperse over hundreds of millions of years.
最可信的解释是星团包含一圈无任何普通物质相伴的暗物质。
The most plausible explanation is that the cluster contains a distinct ring of dark matter without any accompanying ordinary matter.
因此，研究球状星团可以向我们揭示银河系的历史。
Studying globular clusters therefore tells us about the history of our galaxy.
地球生物只能对着那儿致密的星团和大质量气体尘埃望洋兴叹。
Earthlings can only wonder at the dense star clusters and massive gas and dust clouds that reside there.
炽热的星团内气体是粉红色，蓝色覆盖层绘制了暗物质的位置。
Hot intracluster gas is shown in pink, and the blue overlay maps the location of dark matter.
罗曼：“我觉得那张图片最让我印象深刻的是球状星团的中心。”
NANCY GRACE ROMAN: "I think the image that to me was most striking was the center of a globular cluster."
这个稠密的星团由几百万颗恒星组成，分布在约120光年的尺度上。
The dense cluster is made up of several million stars in a volume only about 120 light-years across.
星团可能是刚好经过照片中的这片气体云，并将其加热，使之发出光芒。
The cluster is probably just passing through the cloud seen here, heating it up and making it glow.
在著名的昴宿星团里，星光正缓慢地摧毁这些游荡的气体和尘埃的云团。
In the well known Pleiades star cluster, starlight is slowly destroying this wandering cloud of gas and dust.
气体星团推动原行星向外的推力可能在某些时候强于那些使它向内的推力。
Gas clusters that push the protoplanet outward can sometimes exert stronger forces than those that push inward.
除了星团稠密的核心，这张锐利的彩色照片还突出了M 13的外延范围。
Along with the cluster's dense core, the outer reaches of M13 are highlighted in this sharp color image.
哪怕只有一个发现，也需陷入使用显微镜对星团颗粒的辛勤研究。
Finding even one requires a painstaking search of Stardust's particle trap using a microscope.
我们可以观测到，球状星团在银河系周围的巨大光晕中广泛分布。
Globular clusters can be found spread largely in a vast halo around our galaxy.
我们可以观测到，球状星团在银河系周围的巨大光晕中广泛分布。
Globularclusters can be found spread largely in a vast halo around our galaxy.
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