This law is known to hold true for galaxies at a distance of at least several billion light years.
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。
It can see objects about 13.7 billion light years away.
它可以看到137亿光年以外的物体。
That means that our nearest neighbours are perhaps 100 light years away, which is almost next door in astronomical terms.
那意味着我们最近的邻居星球离我们大约有100光年远，从天文学的角度来说，这几乎是一墙之隔。
The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light years from Earth in perfect lockstep.
第一个是一对质量与木星差不多的行星，这对行星步调一致地围绕距离地球15光年的母恒星旋转。
The stars being searched are hundreds of light years away, so it takes hundreds of years for their signal to reach us, and a further few hundred years for our reply to reach them.
被搜寻的星星离我们有几百光年远，所以它们的信号传到我们这里需要几百年，而我们的答复传到它们那里又需要几百年。
Full employment still seems light years away.
充分就业好像依然是遥遥无期。
Now we have images of galaxies millions of light years away from Earth.
我们已经可以得到距离地球百万光年之外星系的照片了。
Chandra detects and images X-ray sources that are billions of light years away.
钱德拉能检测和成像数十亿光年之遥的X射线源。
The system is just nine light years away, a mere stone's throw in astronomical terms.
这个系统与我们只有9光年的距离，在天文学范畴内就是咫尺之遥。
Epsilon Eridani b orbits an orange Sun-like star only 10.5 light years away from Earth.
EpsilonEridanib围绕着一颗橘红色类似太阳的恒星运行，它距离地球只有10.5光年。
The next-closest known star to the Sun is Proxima Centauri, located 4.2 light years away.
距太阳第二近的恒星是比邻星，距离为4.2光年。
The brighter of the two tails has been seen before and extends for about 260,000 light years.
先看看两个大尾巴中较亮的一个，它绵延了260,000光年。
Now, new pictures reveal the first light from objects 13 billion light years away, the infants of our universe.
如今，新的图片显示出了在宇宙婴儿时期，由130亿光年远处的星体所发出的第一缕光。
A long tendril of colder gas and dust extends many light years into the void from the receding ionization front.
低温气体和尘埃长长的卷须从渐行渐远的电离前沿一直延伸到数光年远的太空。
It will also gather information from cosmic radiation sources on stars and galaxies millions of light years away.
它将收集数百万光年外的恒星、星系等宇宙射线源的信息。
A few great conversations and connections are light years better than dozens of comments and tons of page views.
一些伟大的对话和联系远优于繁多的评论和很高的页面浏览量。
This giant string of galaxies is 1.4 billion light years across making it the largest known structure in the universe.
这个巨大的星系带长达14亿光年，是宇宙中我们已知的最大结构。
The planet in question orbits a star called Gliese 581 that lies a mere 20 light years away in the constellation Libra.
我们这颗行星围绕一颗称为Gliese 581的恒星运转，该恒星距地球仅20光年，位于天秤座。
Located about 2,000 light years from Earth in the constellation Lyra, the Ring Nebula is also known as Messier Object 57 and NGC 6720.
这个星云位于距离地球2000光年的天琴座内，它还有另外两个名字：MessierObject57和NGC 6720。
Gliese 581, the brightest object in this Nasa image from 2007, is only 20 light years from Earth and is one of our nearest neighbours.
这张照片是NASA 2007年拍摄的，其中最明亮的星体便是Gliese 581，它距地球20光年，是太阳系最近的邻居之一。
At 5, 500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms.
5500光年远处，猫爪星云是一个发射星云，红色来源于其丰富的电离状态的氢原子。
It's about 2 light-years long and half a light-year wide. It's located about 2, 000 light years away in the direction of the Constellation Cygnus.
它大约有2光年长、半光年宽，位于天鹅座方向，距地球约2,000光年。
Scientists pointed Nasa's Infrared Telescope Facility at a distant planet called HD 189733b some 63 light years away in the constellation of Vulpecula.
科学家将NASA(美国航空航天局)的红外望远镜对准距地球约63光年、位于狐狸星座中的行星HD 189733b。
Pictured above, NGC 1313 spans about 50, 000 light years and lies only about 15 million light years away toward the constellation of the Reticle (Reticulum).
上图，NGC 1313宽约50000光年，距离约1500万光年，在网罟座(十字线星座)。
The enormity of the Milky Way is shown in these stunning images, captured using only a standard digital camera and tripod, of stars 25,000 light years from Earth.
银河的广袤在这些图片里展示得淋漓尽致，他只用了一个三脚架和一架普通的数码相机就拍到了离地球2万5千光年远的星星。
The Milky Way is huge—about 100, 000 light years across—and contains 400 billion stars, but given enough time, a determined civilization could spread far and wide.
银河系广袤无边，跨度达10万光年，拥有4000亿颗恒星，不过只要有充足的时间和坚定的决心，一个文明可以走得很远。
It may seem arrogant to give advice to the one company that has surprised everyone again and again by being light years ahead of the industry — as well as the consumer.
苹果比同行和消费者超前几个“光年”，它一次又一次带给我们惊喜，给这样一家公司提建议似乎显得有些狂妄。
Basking in the glow of the bright supergiant star Rigel, the Witch Head Nebula trails like a puff of smoke through the Eridanus constellation about 700 light years away.
在明亮的超巨星参宿七的照耀下，女巫头星云的尾部就像一阵烟，穿过700光年远的波江座。
Basking in the glow of the bright supergiant star Rigel, the Witch Head Nebula trails like a puff of smoke through the Eridanus constellation about 700 light years away.
在明亮的超巨星参宿七的照耀下，女巫头星云的尾部就像一阵烟，穿过700光年远的波江座。
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