The interstellar cloud of gas and dust is an active star-forming region.

由气体和尘埃组成的星系云是一个恒星形成的活跃区域。

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Reddish nebulae in this image reveal regions of active star formation, where young, hot stars heat up nearby gas clouds.

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。

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One of the most active star-forming regions near Earth, N11 is part of a complex network of gas clouds and star clusters in the Large Magellanic cloud, a neighboring galaxy.

其中一个最活跃的恒星形成区域靠近地球，N11是在大麦哲伦星云(一个邻近星系)里的气云和星团所组成的复杂网络的一部分。

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An active galaxy is a star system with a humongous black hole at its centre.

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The researchers suggest the clusters they originated from may no longer be active, thus shedding light on the history of star activity in the galactic core.

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