Yellowish older stars can be seen in the central bulge of each galaxy.

可以在每个星系中央隆起看到淡黄色较老的恒星。

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Its gas is centrally concentrated, but it does not have a central bulge of stars.

它的气体浓缩在中心，但中心又没有核球。

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The Milky Way 's bright central bulge is now thought to be an asymmetrical bar of relatively old and red stars.

银河系的光明中央隆起现在被认为是不对称酒吧相对旧的和红色恒星。

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" He adds a bit later: "That we live in a large spiral galaxy with very little central stellar bulge and a modest central black hole may be a clue to the type of galaxies best suited to life: ones that did not spend their pasts building colossal black holes and fighting the demons unleashed in the process.

WSJ: Book Review: Gravity's Engines