在二十世纪二十年代的时候，这个观点又流行起来，用来解释银河系恒星之间类似的不规则运动。后来，该观点仍然用来解释星系旋臂的形成。
The idea was revived in the 1920s to explain similar irregular movements among the stars in the Milky Way and later still to describe the formation of galactic spiral arms.
尽管我们银河系的黑洞目前很安静，但是该发现意味着仅仅凭着一颗不规则的恒星就可以引起一派壮观的景象。
Although our galaxy's black hole is currently quiet, this discovery means just one wayward star can spark a spectacle.
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