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Paul Hickson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。
应用推荐