These calculations have been taken further than ever before by a new study that tallied both types of mass in smaller and more distant groups of galaxies than any previous projects.
由于一项新的研究，这些计算得到了一些以前不曾得到的结果，这项研究计算了在遥远小星系团中可见物质与暗物质的含量。
Explanation: Scanning the skies for galaxies, Canadian astronomer Paul Hickson and colleagues identified some 100 compact groups of galaxies, now appropriately called Hickson compact groups.
说明：加拿大天文学家PaulHickson和他的同事通过巡天观测夜空中的星系后识别了大约100个紧密的星系群，这些星系群现在被恰当地称为希克森致密星系群。
Galaxies in such groups often interact and even merge together in a dynamic cosmic dance of interacting gravity.
这样的群组中的星系时常相互作用，甚至在活跃的相互作用的宇宙引力之舞中合并在一起。
As a whole, the groups with BRGs tended to have more galaxies which were more luminous, and had a greater variety of velocities.
总的来说，含有BRG的星系群倾向于含有更多的明亮星系，在周转速度上的差异也更大。
These galaxies were often the brightest of the galaxies within their own groups.
这些星系是它们各自的群中最亮的。
Smaller groups of stars called globular clusters often surround spiral galaxies.
称作球状星团的小型恒星团体经常环绕在旋涡星系周围。
Some extremely peculiar galaxies are located in close groups of two or three, and their tidal interactions have caused distortions of spiral arms, producing warped disks and long streamer tails.
一些极为特殊的星系都在密切的群体的两个或三个，它们的潮汐相互作用造成扭曲的螺旋臂，生产扭曲磁盘和长期飘带尾巴。
Some galaxies occur alone or in pairs, but they are more often parts of larger associations known as groups, clusters, and superclusters.
一些星系单独出现或成对出现，但它们更经常以叫做星群、星团和超级星团的较大的星协的组成部分来出现。
Some galaxies occur alone or in pairs, but they are more often parts of larger associations known as groups, clusters, and superclusters.
一些星系单独出现或成对出现，但它们更经常以叫做星群、星团和超级星团的较大的星协的组成部分来出现。
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