These results help explain how a supermassive black hole can alter the evolution of its host galaxy.

这些结论帮助解释了特大质量黑洞如何可以改变它所在星系的演化。

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Initial observations that the size of a black hole and the size of its host galaxy were matched are turning out to not always be the case.

最初人们认为，黑洞的尺寸和其宿主星系的大小是成比例的，但这个观点现在看来并不尽然。

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The outburst might have been generated by a star torn to shreds when it ventured too close to a black hole in its host galaxy, he suggests.

他猜测，这次爆炸可能是因为一颗被撕成碎片的恒星过于靠近其所在星系的一个黑洞引起的。

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Astronomers think this galaxy was torn apart by the gravity of a larger host galaxy that it orbited.

MSN: Rare Black Hole Survives Galaxy's Destruction

Now that Dr van Paradijs's team, and another led by Kailash Sahu at the Space Telescope Science Institute in Baltimore, have had time to look properly at the fading point of light, they have noticed a faint fuzz around it that looks as if it could be a galaxy playing host to a dramatic explosion.

ECONOMIST: Astronomy

An analysis of small, dim "red dwarf" stars - which make up a majority of stars in our galaxy - shows that 6% of them host such a planet.

BBC: Exoplanets near red dwarfs suggest another Earth nearer