It does suggest that it's at least possible that the black hole formed before the galaxy.

它确实表明至少黑洞有可能在星系之前先形成。

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Researchers used data from the Hubble Space Telescope to look more closely at the black hole, and found that the supermassive black hole in the M87 galaxy is, in fact, displaced from the center.

科研人员根据已有数据，通过哈勃太空望远镜更近距离的观察这个黑洞。发现M87星系的特大质量黑洞已经移出了中心位置。

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Most astronomers believe that the large concentration of mass at the galaxy's center is a black hole whose gravity is causing the gas to whirl.

大多数天文学家认为，星系中心的大量物质是一个黑洞，它的引力导致气体旋转。

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It is the point at which the extreme black-hole gravity has taken such hold of approaching objects that those objects will in fact be sucked into the black hole.

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Despite the fact that it is probable that a black hole lurks at the centre of our Milky Way galaxy, astronomers still know very little about these celestial monsters which vacuum up almost everything in their path, even light.

BBC: Black holes reveal more secrets

The Hubble Space Telescope recently spied a cluster of young blue stars surrounding a rare mid-weight black hole that suggests the black hole was once at the center of a dwarf galaxy.

MSN: Rare Black Hole Survives Galaxy's Destruction