这个星系在60到90亿年前被银河系吞噬，这种现象被称为星系同类相食。

This galaxy was gobbled up by the Milky Way between six and nine billion years ago in an act of intergalactic cannibalism.

youdao

这个星系在60到90亿年前被银河系吞噬，这种现象被称为星系同类相食。

This galaxy was gobbled up by the Milky Way between six and nine billion years ago in an act of intergalactic cannibalism.

youdao