We live in a galaxy of other stars; the Milky Way is not merely a glowing cloud but what we have come to call a galaxy, an island universe.
我们存在于由其它恒星组成的一个星系中，银河不再仅仅是一朵发光的云，而是必须被称作星系，它是一个岛宇宙。
This violent phase of consumption is the one that is readily observed, because the castoff energy turns the incoming gas and dust into a glowing cloud.
这个剧烈消耗的阶段是很容易被观测到的，因为这些被丢弃的能量把那些进入黑洞的气体和尘埃变成了一个灼热的云团。
The process blasted out material to form the bubble structure of glowing gas against denser material in a surrounding molecular cloud.
这个过程形成的炽热气泡结构恰好可以抵御周围分子云中密度更高物质的压力。
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