Observations indicate that gas clouds in galaxy M87 are whirling unusually fast about the galaxy's center.

观测表明 M87 星系的气体云围绕星系中心旋转的速度异常快。

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Residual sunlight from a sun already set lit the horizon and clouds while the stars and Milky Way galaxy revealed themselves up above.

太阳剩余的阳光已经了照亮了地平线和云彩，而恒星和银河星系把它们自己透露在天空的上方。

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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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As galaxy clusters form, they create clouds of hot electrons.

ECONOMIST: Cosmology

Gas clouds in the middle of the galaxy are, everyone agrees, partly ionised: radiation flying through has battered electrons off some of the atoms in the gas.

ECONOMIST: Here be serpents

Try as they might astronomers simply cannot see through these clouds to the centre of our Milky Way galaxy.

BBC: By BBC News Online Science Editor Dr David Whitehouse