But what about supermassive black holes?

但如果是超大质量黑洞呢？

There are also supermassive black holes.

还有超大质量的黑洞。

And I study supermassive, hyperactive, black holes called " blazars" .

我研究的是特大质量、极度活跃的黑洞，“变体”。

So make sure to choose a supermassive one.

所以一定要选择一个特大质量的恒星黑洞。

Inside most galaxies a supermassive black hole lurks.

在大多数的河系中都会隐藏着一个黑洞。

It's believed the center is a supermassive black hole.

人们相信河系中心有一个巨大的黑洞。

At the center of the galaxy is a supermassive black hole.

该星系的中心是一个特大质量的黑洞。

Supermassive black holes are far bigger, millions or billions of kilometers across.

超大质量黑洞要大得多，直径达数百万或数十亿公里。

Particularly ones that have been dormant, which is about 95% of supermassive black holes.

是那些处于休眠状态的黑洞 -- 超大质量黑洞有95%都是休眠中的。

It was a supermassive black hole 4 million times the mass of our sun.

这是一个质量是太阳质量400万倍的超大质量黑洞。

We now think that these supermassive black holes form at the same time galaxies do.

我们现在认为这些超大质量黑洞是与星系同时形成的。

Even supermassive black holes in galactic centers evaporate.

即使是星系中心的超大质量黑洞也会蒸发。

It is far smaller than the supermassive black holes found at the center of large galaxies.

远远小于在大型星系中心发现的超大质量黑洞。

Galaxies contain billions of stars and planets, and some may even have supermassive black holes at their center.

星系包含着数以亿计的恒星和行星某些星系，甚至在中心还含有大质量黑洞。

Barring a breakthrough in exotic physics, there's only one energy source that could suffice: a supermassive black hole.

除非在奇特物理学上取得重大突破，否则只有一种能量来源可以满足需要：超大质量黑洞。

And in SDSS, we're looking at over half a million supermassive black holes, to try to understand how they formed.

在SDSS中，我们观察了超过50万个超大质量黑洞，试图了解它们是如何形成的。

Two supermassive giants would get close to each other until they reached a gravitational balance, and froze in their respective orbits.

两个超大质量的巨行星会不断靠近对方，直到它们达到引力平衡，并固定运行在各自的轨道上。

This is an artist's rendering of what Nustar detected. Scientists believe that areas around supermassive black holes shine brightly in X-rays.

而这是对于核光谱望远镜阵列所探测结果一位艺术家的加工渲染。科学家认为超大质量黑洞周围在X射线中明亮闪。

Today you learned that active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter.

今天你学到了活跃的星系会释放出大量的能量，因为它们中心的超大质量黑洞会吞噬物质。

While a supermassive black hole can be spotted moving around a distant galaxy, there actually is one that is much closer to home.

虽然目前也观察到一个大质量的黑洞在环绕着一个遥远星系运动，实际上，有一个离我们更近的。