这个定律被普遍认为同样适用于至少数十亿光年之远的星系。
This law is known to hold true for galaxies at a distance of at least several billion light years.
在宇宙中最引人注目的能量工厂——距离地球数十亿光年的类星体和伽马射线爆发——中寻找这些物质的来源似乎是明智的。
It would seem sensible to seek the source of these in the universe's most conspicuous energy factories: quasars and gamma-ray bursts billions of light-years away from Earth.
钱德拉能检测和成像数十亿光年之遥的X射线源。
Chandra detects and images X-ray sources that are billions of light years away.
这个星系团距地球比以往发现的所有星系都要远十亿光年。
The galaxy cluster is a billion light years further from earth than any other discovered
爆发来自遥远地方的爆炸，特大-质量的星在十亿光年以外。
The bursts came from the explosions of distant, super-massive stars that were billions of light years away.
矮星系之间的如此遭遇通常发生在几十亿光年之外，也就是几十亿年之前。
Such encounters between dwarf galaxies are normally seen billions of light-years away and therefore occurred billions of years ago.
我们经常在新闻和科学杂志里看到报道，它涉及数以万的，百万的——甚至十亿光年的距离。
We often see reports in newspapers and scientific journals that refer to distances of tens, to hundreds to millions — even billions — of light-years.
通过一个偶然的机会，宇宙学家们第一次测量到了九十亿光年之外某个螺旋星系的一个关键性质。
By exploiting a lucky accident, astronomers have for the first time measured a key property of a spiral galaxy located more than nine billion light-years away.
一个新的摄谱仪回溯数十亿光年远的宇宙绘制宇宙网状结构图，并追溯宇宙中生命基本元素的分布。
A new spectrograph slices across billions of light-years to map the filamentary structure of the universe and trace the distribution of elements that are fundamental to life.
十亿光年之外的两个黑洞碰撞时会发出什么声音？今年科学家发现那是一种啁啾之声，美得你无法想象。
What does it sounds like when two black holes collide a billion light years away? Scientists learned this year, and you've never heard a more beautiful chirp.
我们无法回到数十亿年以前或到数十亿光年以外的距离进行衡量，但我们可以在实验室以非常，非常高的精度测量它。
We can't measure it over billions of years or over billions of light years, but we can measure it to very, very high precision in the laboratory.
在那几十亿光年以外的地方，回头看数十亿年时间，我们现在知道，这个精细结构常数并没有任何超过1/100000。
Over billions of light years and looking back billions of years in time, we now know that the fine-structure constant hasn't changed any more than about .001 percent.
如果天文学家能够观测到十亿光年外的螺旋星云的金属丰度梯度，我们就可以知道亿万年之前的梯度有多大，因此也就可以知道它是如何随时间变化的。
If astronomers could observe metallicity gradients in spiral galaxies billions of light-years away, we could see how steep the gradients were billions of years ago and thus how they change over time.
在我们的银河系之外：巨大的星系NGC 1275位于离我们 2.33 亿光年远的英仙座星系团的中心，而3C 454.3 PKS1502+106PKS 0727-115是距离我们数十亿光年远的活跃星系团。
PKS 1502+106, and PKS 0727-115 are active galaxies billions of light-years distant.
仙女座星系是距我们的银河最近的大型螺旋星系，距离大概有2.5万光年，有数百十亿的星星簇拥着。
The Andromeda galaxy is the nearest large spiral galaxy to our Milky way. It's about 2.5 million light-years away, teeming with hundreds of billions of stars.
仙女座星系是距我们的银河最近的大型螺旋星系，距离大概有2.5万光年，有数百十亿的星星簇拥着。
The Andromeda galaxy is the nearest large spiral galaxy to our Milky way. It's about 2.5 million light-years away, teeming with hundreds of billions of stars.
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