Are Fast Radio Bursts Evidence of Unknown Life?
2017-03-26 22:03:24


The idea may be a little out of this world.(1)
这个想法可能是有点超出了这个世界。

Ten years ago, scientists started noticing very brief, but powerful radio bursts coming from outer space.(2)
十年前,科学家们开始注意到来自外层空间的非常简短,但功能强大的射电爆发。

Called fast radio bursts, or FRBs, they have been identified as millisecond-long bursts of radio emission.(3)
被称为快速射电爆发或吴为,他们已经被确定为毫秒长阵阵的无线电发射。

Scientists believe these emissions were made in a group of stars billions of light years away from Earth.(4)
科学家们相信这些排放在一组星星数十亿光年距离地球的距离了。

A new theory says the radio bursts may be evidence of highly developed alien life. A paper describing the theory was published this month in The Astrophysical Journal Letters.(5)
一种新理论说射电爆发可能是高度发达的外星生命存在的证据。阐述了理论发表在这个月在天体物理学杂志 》。

The bursts cannot be seen with the human eye, but were observed by very large radio telescopes.(6)
连发与人类的眼睛,看不见,但是用很大的射电望远镜观察。

Many scientists believe that these powerful flashes may be related to the collapse of a massive star.(7)
许多科学家认为,这些强大的闪光可能会涉及到崩溃的大质量恒星。

But scientist Avi Loeb says researchers have yet to confirm any natural cause of the emissions.(8)
但科学家 Avi Loeb 说研究人员尚未确认任何自然排放的原因。

Loeb is chair of Harvard University’s Astronomy Department and works at the Harvard-Smithsonian Center for Astrophysics.(9)
勒布是哈佛大学天文学系主任和在哈佛-史密松天体物理中心的工作。

He believes the bursts might be coming from powerful equipment, like a transmitter used on Earth to broadcast radio or television signals.(10)
他认为爆发可能来自强大的设备,像在地球上所使用的用于广播电台或电视信号发射器。

He thinks the device could be as big as a planet and have enough power to send large spaceships great distances.(11)
他认为该设备和地球一样大,有足够的力量送大宇宙飞船很大距离。

Light Powered Spaceships(12)
光动力太空飞船

While noting this is just “speculation,” Loeb told VOA what he suspects might be producing the fast radio bursts.(13)
虽然注意到这只"猜测,"勒布对美国之音说,他的怀疑可能生产快速射电爆发。

He says, imagine a spacecraft moving like a sailboat, powered by light from the huge planet-sized transmitter.(14)
他说,想象移动像一艘帆船,从巨大的行星大小发射机光动力的航天器。

“If you have a sailboat, the wind is pushing the sail, and the sail carries the boat along with it.(15)
"如果你有一艘帆船,风正帆,帆携带小船以及它。

You can imagine doing exactly the same thing with light.(16)
你可以想象做同样的事情用光。

If you bounce light off a sail, you could push a spacecraft.(17)
如果你的跳跃帆关灯,可以推动飞船。

And in principal because the spacecraft doesn’t carry its own fuel, you can push it all the way to the speed of light. At very high speeds.”(18)
主要因为航天器不携带自己的燃料,你可以把它一路到光的速度。在非常高的速度"。

Loeb says it could be created by alien life forms belonging to a highly developed civilization.(19)
勒布说,它可以由外星生命形式属于高度发达的文明。

He thinks the powerful bursts could be a sign of “leakage” — when light hitting the sail moves just past the edge of the sail.(20)
他认为强大的爆发可能会成为"泄漏"的标志 — — 当光线击中帆移动,只是过去的风帆的边缘。

It shows up on Earth as a very bright, fast-moving radio wave.(21)
它表明在地球上,作为非常明亮、 快速移动的电波。

"And the idea is that the beam of light that is being used to push the sail is leaking.(22)
"和的想法是,这束光被用来推动帆泄漏。

We see leakage of that radiation and if the beam is powerful enough we could see it from a great distance and because the beam is sweeping across the sky,(23)
我们看到这种辐射的泄漏,如果梁是强大的话,我们可以看到它从很远的地方,因为光束扫过天空,

we would see it as a flash of light, as a burst of radio waves, the way these fast radio bursts appear. ".(24)
我们会看到它如闪电般的光芒,如同一阵的无线电波,这些快速射电爆发的显示的方式。".

Alien Threat?(25)
外星人的威胁吗?

If there are aliens — life outside our planet — are they a threat?(26)
如果有外星人 — — 我们的星球之外的生活 — — 他们是一种威胁吗?

Loeb does not think so. If they do exist, they are “great distances” from us, he notes, “so there is no danger for us directly.”(27)
勒布不这么想。如果他们确实存在,他们是"远距离"从我们,他注意到,"所以,有没有危险,我们直接。

The bursts were first observed in 2007. Since then, a total of 18 have been identified using very large radio telescopes.(28)
2007 年第一次观察连发。自那时以来,共 18 未曾使用非常大的射电望远镜。

Some of the researchers have been at the National Radio Astronomy Observatory (NRAO) in the American state of New Mexico.(29)
一些研究人员已经在国家射电天文学观测所 (NRAO) 在美国新墨西哥州。

They identified where one burst came from -- a dwarf galaxy more than three billion light-years from Earth.(30)
他们确定了一个爆裂是哪里来的 — — 一个矮星系比距地球 30 亿光年。

Sarah Burke-Spolaor teaches physics and astronomy at West Virginia University.(31)
莎拉 · 伯克-Spolaor 教物理和天文学在西弗吉尼亚大学。

She reported on the discovery earlier this year in two journals: Nature and Astrophysical Journal Letters. (32)
她报告发现了今年早些时候在两个期刊︰ 性质和天体物理学杂志 》。

Burke-Spolaor says the fast radio burst was first discovered in November of 2012 at the Arecibo Observatory in Puerto Rico.(33)
伯克 Spolaor 说第一次发现快速射电爆发在 2012 年 11 月在波多黎各的阿雷西博天文台。

The NRAO radio telescope later helped to identify where the FRB came from.(34)
NRAO 射电望远镜后来帮助确定 FRB 是从哪里来。

What makes this emission different is that it is the only one to keep sending bursts — about 200 times, so far.(35)
是什么让这种发射不同的是它是唯一一个能把阵阵 — — 约 200 次,到目前为止。

Burke-Spolaor says there are “many ideas about what FRBS are.”(36)
伯克 Spolaor 说有"吴为是什么的许多观念"。

She says “the leading theory … is that these are related to neutron stars in other galaxies.”(37)
她说:"领先的理论......是这些因素涉及其他星系中的中子星."

They could also come from black holes – areas with a gravitational field so intense that no matter or radiation can escape.(38)
他们也可能来自黑洞的问题上 — — 一个引力场,以至于能逃脱没有物质或辐射的地区。

She describes Avi Loeb as an “out of the box thinker.”(39)
她描述 Avi Loeb 作为"框思想家出去"。

She says his theories have an important job: they “make us (scientists) reconsider our assumptions and what we know and don’t know.”(40)
She says his theories have an important job:他们"使我们 (科学家) 重新考虑我们的假设和我们知道的不知道"。

She adds, “it doesn’t mean the theory is anywhere near right, but we don’t have enough evidence to rule it out.”(41)
她补充说,"这并不意味着理论是接近正确的但是我们没有足够的证据来排除这种可能性"。

Where did Loeb get his theory?(42)
勒布在哪里他的理论?

And where did Loeb get the idea that the fast radio bursts come from light pushing a spaceship?(43)
和哪里 Loeb 得到快速无线电破裂的想法来从轻推一艘太空飞船?

Loeb leads a team developing technology to send spacecraft to a planet called Proxima b. The project is called Breakthrough Starshot.(44)
勒布带领技术向一颗行星,被称为比邻 b 发送航天器的研发团队。该项目被称为突破 Starshot。

He and the team are developing thousands of small spacecraft with sails. They want to use laser beams to push those sails forward.(45)
他和团队正在开发数以千计的小型航天器与帆。他们想要使用激光束来推动这些帆。

That got him thinking.(46)
这使他的思维。

“The fact that we are starting to think about propelling a spaceship, a spacecraft with light made me think about the possible signals that we could detect from the sky from a civilization that is using this technology.”(47)
"我们开始思考关于推进宇宙飞船的事实,航天器用光,让我想想可能的信号,我们可以探测到从一个使用这种技术的文明天空。"

For now, Loeb’s idea is just a theory. He and others say it will take more information to know if his theory is right.(48)
现在,勒布的想法是只是一种理论。他和其他人说,它将采取更多的信息,要知道他的理论是否正确。

I’m Anne Ball.(49)
我是安妮球。


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