elliptical galaxy

基本解釋

Elliptical galaxies contain many older stars, up to one trillion, but little dust and other interstellar matter.
橢圓星系中有多達(dá)萬(wàn)億顆古老的恒星，但幾乎沒(méi)有灰塵和其他星際物質(zhì)。
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.
太空總署的星系演變探測(cè)者發(fā)現(xiàn)了黑洞存在的證據(jù)：一旦其達(dá)到一個(gè)臨界規(guī)模，橢圓形星系中的新星形成便會(huì)被扼殺。
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，加州理工學(xué)院的理查德·埃利斯說(shuō)，問(wèn)題是研究者們假設(shè)橢圓星系中的紅矮星與銀河系中的紅矮星有相同的化學(xué)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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