Quasars are the highly energetic cores of distant galaxies.
类星是遥远星系
极为活跃
核心
。
Quasars are the highly energetic cores of distant galaxies.
类星是遥远星系
极为活跃
核心
。
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。
Explanation: Across the heart of the Virgo Galaxy Cluster lies a string of galaxies known as Markarian's Chain.
说明: 贯穿室女座星系团心脏有一条星系链,称为马卡林之链。
Steidel)及其同事所发展,它能使观测者建立关于遥远星系大量目录,这些星系
恒星光也许曾助长了星系际
再游离。
Steidel of Caltech and his colleagues, has enabled observers to build up sizable catalogues of distant galaxies—whose starlight may have helped reionize intergalactic gas.
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