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火星上的生命? – 译学馆
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火星上的生命?

Life on Mars?

关于暗物质 我们已经看到了许多相关的评论和问题
We’ve been seeing lots of comments and questions about dark matter
它占据了宇宙物质总量的23%
that matter that makes up 23 percent of the stuff in the universe.
但我们看不到它 对它也一无所知
But we can’t see it and have no idea what it is.
不错的是 这一周我们又更好地理解那种物质
Well, this week we got a big step closer to understanding that stuff better
有了叫“马约拉纳费密子”这种新粒子的发现
with the discovery of new particles called majorana fermion.
意大利的有点疯的物理学家埃托雷马约拉那首次提出关于这种粒子的理论
This articles first theorized by Italian physicist and kinda crazy dude Ettore Majorana
他在二十世纪三十年代提出
who in the nineteen thirties propose that
如果反物质存在的话 也就是说
if anti-matter exists, that is
所有粒子都有带着相反电荷的镜像相反物
for every particle there is a mirror opposite with the opposite charge
那就一定有一个粒子是它的自身的反粒子
and there must also be a particle that is its own antiparticle.
我搞不懂这个想法是把他吓了一大跳 还是别的什么
I don’t know this concept totally blew his mind or what.
但在提出此猜想不久后 马约拉那登上一艘前往西西里岛的船后接着便神秘失踪
But soon after he proposed it Majorana mysteriously disappeared
再也没人见过他
after boarding a boat for sicily never to be seen again
真是难以置信 现在时间快进到本周末当荷兰的物理学家们说
Seriously, now fast forward to this week when Dutch physicists say that
最终他们通过检测这种奇怪粒子的踪迹或许已经解决了马约拉那难题
they might have solved majorana’s conundrum by finally detecting traces of this strange particle.
我会告诉你他们怎么办到的
I’m gonna tell you how they did this
如果你不懂也不要紧
Don’t worry if you don’t understand
该团队将一条精选导线连接到一个超导体上
the team connected the low choice of wire to the super conductor
让电流流过它
ran current electron through it
接着将其暴露在磁场中 可是他们发现的并不是物质的碎片
and then exposed it to a magnetic fieldbut they found weren’t bits of matter.
而是两组电子在同一时间表现出完全相同的行为
But rather two groups of electrons that began acting the same way
就如同马约拉那所预测的那样 相信我吧
and the same time as majorana predicted, trust me.
这发现非常重要 因为这些粒子介于物质和反物质之间
It’s big deal since these particles existon the brink of matter and anti-matter
某些物理学家认为它们或许是暗物质的主要成分 此若属实 这将开启物理学新篇章
Some physicists think that they could be the key ingredient of dark matter which if true would change everything.
马约拉那 我们有好消息要告诉你快回家吧
Majorana, we finally have news for you come home.
航天飞机计划的前主任约瑟夫米勒所领导的新研究表明
New research led by the former director of the space shuttle program JosephMiller suggested
海盗号火星登陆车可能已发现火星上存在的生命
the Viking landers may in fact have found life on Mars
该研究查看了
after all study looked the
1976年火星登陆者在火星土壤上所做的四项检测数据之后
data from all four of the tests that the landers performed on the Martian soil in 1976
当时只有一项带回放射性标记的阳性养料被添加到土壤样本中
only one came back positive nutrients with the radioactive signature were added to soil samples
其中一些样本释放出带有相同放射性标志的气体
and some of those samples gave off gas with the same signature
这表明养料被新陈代谢了 另一项试图寻找
suggesting the nutrients had been metabolized another test looking for
大量有机分子
large amounts of organic molecules 
和光合作用痕迹的检测结果 似乎带回了阴性物质
and the signs of photosynthesis seemed to come back negatives.
因此结论是
So the conclusion was
火星上没有生命
No life on Mars
所有新的研究质疑的并非实验本身
All the new study doesn’t question how the experiments were done
而是数据是如何出来的
but rather how the numbers were crunched
通过运用一种叫复杂度分析的信息处理方法
using an approach called complexity analysis.
专家们把所有的海盗号采集的数据与在地球土壤上 进行同样实验产生的数据进行对比
Experts compared all the Viking datawith similar experiments done on earth soil
根据数学复杂性对数据进行整理
in sort through them by which were the most mathematically complex
结果海盗号的实验数据与从地球土壤实验获得的数据落在同一组
the date form the wiking nutrient experiment and the grouping together with date from the earthlier experiments
这意味着它们比阴性结果的数据复杂
meaning they were more complex than the data from the negative results
研究团队认为任何生物系统
the team is thinking that any biological system
即便它与地球上的我们所发现的生物系统大相径庭
even if it massively different from one would found on earth
也还是比非生物系统复杂得多 所以36年后
would still be much more complex than non-biological ones. So 36 years later
或许我们已经在火星上发现生命的存在
We may have figured out life on Mars.
而且海盗号告诉我们的应该还有很多
There is still a lot that viking is teaching us.
但坏消息是 只有我们再次回到火星 才能知道了
Bad news is we’re never gonna really know until we go back.
请在脸书和推特上告诉我们你的看法 也可以在 视频下方评论
but what you think let us know on Facebook Twitter or in the comments below
下周再见
And we’ll see you next week
(音乐)
(music)

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视频概述

科学新闻两则:荷兰物理学家可能已找到组成暗物质的粒子。新研究表明火星上可能存在生命。

听录译者

收集自网络

翻译译者

梦珠

审核员

知易行难

视频来源

https://www.youtube.com/watch?v=rOztrDmFFWM

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