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。
It is especially suited for the study of molecular clouds in the milky way . 它特别适合于研究银河系里的分子云团。
The oldest stars in the galaxy exhibit a metal deficiency relative to hydrogen . 银河系中最年老的恒星表现出一种对氢而言的贫金属性。
The shape of this galaxy indicates an obvious tendency for its matter to agglomerate . 这个银河系的形状表明它的物质明显地有团聚在一起的趋势。
Weber claims recently to have observed gravitational waves coming from the centre of the galaxy . 最近,韦伯声称已观察到来自银河系中心的引力波。
We observe in the galaxy much larger, denser, and more massive aggregates of cold interstellar matter . 在银河系中还观测到大小,密度和质量都要大得多的冷星际物质团。
All the matter of the galaxy was originally a spherical cloud of gas from which stars were condensing out . 银河系中所有的物质最初都是球状气体云,恒星正是从中凝聚而成。
Stars are born in these interstellar clouds, which are located in the spiral arms of our milky way galaxy 在我们银河系里,恒星就是在位于银河系旋臂上的这种星际气云中产生的。
For the galaxy and the andromeda nubula, they do not form a pair of galaxies completely isolated from all others . 对银河系和仙女座星云来说,它们并不构成与所有其他星系完全孤立的一对星系。
The star to be moving rapidly, perhaps in an orbit around the densely concentrated stars of the galactic nucleus . 这颗星看来正在以高速运动着,其运动轨道大概就围绕着由高度密集的恒星所构成的银河系核心。