NGC 6744 is a spiral galaxy bigger than, but otherwise very similar to, our own. NASA has dubbed the large spiral galaxy the Milky Way’s ‘big brother’. When you purchase through links on our ...
Astronomers have performed photometric observations of a young globular cluster known as NGC 1851. The new observational campaign provides more insights into the variable star population of this ...
Discovered in 1784, NGC 891 (also known as Caldwell 23 or the Silver Sliver Galaxy) is an edge-on, unbarred spiral galaxy located some 30 million light years away. It has a size of about 100,000 ...
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说明: 这个看上去不寻常的 星 系 是如何产生的 ?没有人知道。旋涡星 系 NGC 7049看起来是如此的 奇特,其惊人的 外貌主要源于异常突出的 尘埃光环。这个不透明的 光环比它背景中闪耀的 数 ...
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This resource, Guidelines and Measures, was set up by AHRQ to provide users a place to find information about its legacy guidelines and measures clearinghouses, National Guideline Clearinghouse (NGC) ...
Copyright 2024 The Associated Press. All Rights Reserved. Capping two and a-half extraordinary weeks of Olympic sports and emotion, Paris’ boisterous, star-studded ...