了解宇宙是如何运行的（2010）

How the Universe Works S08E08

Part 8 Jan. 30, 2022, 2:59 p.m.

towards each other...
……旋转得越来越快
...Spinning faster and faster,
速度会达到光速的一半
reaching up to half
the speed of light.
♪
最后，两个黑洞合并
finally,
the two black holes merge.
♪
特伦布雷:于是就会
tremblay: You would have
有一个巨大的能量事件
an enormously energetic event
on your hands.
理论上，这些超大质量的黑洞
Those supermassive black holes
could, in principle,
可能会合并在一起，产生巨大的引力波爆♥炸♥
merge together, create a huge
blast of gravitational waves,
伴随而来的是能量巨大的闪光
accompanied by a profoundly
energetic flash of light
这可能危及地球上的所有生命
that could, in principle,
endanger all life on earth.
♪
普莱特:它实际上是空间本身的
plait:
It's literally a stretching
一种拉伸和收缩
and contracting of space itself.
这就像抓住空间的框架
It's like grabbing
the framework of space
然后使劲摇晃
and it's shaking it really hard.
如果这种情况发生在我们的星系中
And if this happens
in our galaxy,
释放出的能量，将会很糟糕
the amount of energy emitted,
that would be bad.
当黑洞碰撞时，它们释放的能量
Narrator:
When the black holes collide,
比星系中所有恒星
they release more energy
产生的能量总和还要多
than all the stars
in the galaxy combined.
♪
普莱特:我们应该为此恐慌吗？
plait: Should we be panicked
about this?
答案是否定的
And the answer is no.
地球绕太阳运行了45亿年
The earth has been orbiting
the sun
没有发生任何事故，对吧？
for 4 1/2 billion years
without any incident, right?
我们很安全
We're pretty safe from them.
如果我们亲眼目睹两个黑洞的碰撞
Narrator: If we were around to
see the two black holes collide,
我们将见证银河系历史上
we'd witness the most
destructive light show
最具破坏性的光秀
in the history of the galaxy.
但就目前而言，我们星系的中心相对来说是安静的
But for now, the center of our
galaxy is relatively quiet,
但它仍然是一个可怕的地方
but it's still
a terrible place to be.
我们银河系的中心不是一个友好的地方
The center of our milky way
is not a friendly place.
这不是你想去的地方这是个糟糕的社区
It's nowhere you want to be.
It's a bad neighborhood.
有大量的恒星，大量的辐射
You've got tons of stars,
tons of radiation,
在这里，恒星会诞生，死亡和爆♥炸♥
and stars are being born
and dying and exploding.
还有中心超大质量黑洞
You've got the central
supermassive black hole.
另外还有一个潜在的黑洞群
You've got a potential swarm
of black holes.
有吸积盘有射线爆
You've got accretion disks.
You've got flares.
有磁场爆发还有喷射流
You've got magnetic outbursts.
You've got jets.
让我们就在郊区待着，好吗？
Let's just stay out here
in the suburbs, all right?
我们银河系的中心
Narrator:
The center of our galaxy
是宇宙中最可怕的地方之一
is one of the most nightmarish
places in the cosmos.
它也是宇宙中一些
It's also home to some
of the most incredible forces
最不可思议的力量的家园
the universe has to offer.
无论我们银河系的未来如何……
Whatever the future
holds for our galaxy...
……银河系的核心就在这一切的中心
...The core of the milky way
will be at the center of it all.
我们的家园，银河系，是我们的安全港
Our home galaxy, the milky way,
is our safe harbor,
是我们在这浩瀚宇宙海洋中的岛屿
our island in this vast,
cosmic ocean.
因此，要了解我们星系的核心
And so to understand
the heart of our galaxy,
就是要了解我们在这宇宙虚空中的家
is to understand our home
in this cosmic void.