elliptical galaxy

基本解释

Elliptical galaxies contain many older stars, up to one trillion, but little dust and other interstellar matter.
椭圆星系中有多达万亿颗古老的恒星，但几乎没有灰尘和其他星际物质。
NASA's Galaxy Evolution Explorer found evidence that black holes -- once they grow to a critical size -- stifle the formation of new stars in elliptical galaxies.
太空总署的星系演变探测者发现了黑洞存在的证据：一旦其达到一个临界规模，椭圆形星系中的新星形成便会被扼杀。
One caveat, says Richard Ellis of Caltech, is that the researchers assumed that red dwarfs in the elliptical galaxies have the same chemical composition as red dwarfs in the Milky Way.
但是且慢，加州理工学院的理查德·埃利斯说，问题是研究者们假设椭圆星系中的红矮星与银河系中的红矮星有相同的化学成分。

There are spiral galaxies, like our own Milky Way, and then there are elliptical galaxies, sort of football or rugby ball shaped.
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