图中泛红的星云透露出活跃的恒星形成区域，在那里年轻的灼热恒星辐射激发了附近的气体云发光。
Reddish nebulae in this image reveal regions of active star formation, where young, hot stars heat up nearby gas clouds.
活跃黑洞所发出的硬X射线辐射，可轻易穿透合并星系的尘埃和气体云，因此我们得以见到这些辐射。
The hard X-rays more readily penetrate dust and gas clouds in merging galaxies and reveal the presence of emission from the active black holes.
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