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科学六十秒

Today's Science in 60 Seconds: Year in Space, Mammoth DNA, & More

从夸克到类星体
嗨 朋友们 我是乔琳娜
Hi guys! Jalene here
这是科学六十秒
with today’s science in 60 seconds.
首先
To begin with,
今天稍晚一颗行星将与地球擦肩而过
later today an asteroid is going to be zooming by our planet,
若它偏离轨道且撞击地球
If it happens to go off course and hit us,
将无人幸免于难
well, we’ll all die pretty terrible deaths.
但无需杞人忧天
But you don’t need to worry about that.
这并不会发生
It’s not going to happen.
你知道当它飞逝而过 其速度甚至超
You see when it goes by, the astros in about
月球运行速率的十二倍
12 times farther away than the moon is.
当然 不幸的是 这无法阻止众多
Of course, unfortunately, that can’t stop number of
媒体报道说 这是险些相撞
publications from saying that this is going to be a near miss
而且仍有潜在威胁
and that it’s potentially hazardous,
我想表达的是 我认为
which I mean, I suppose it’s kind of scary
若很多人担忧月球会突然
if group of the type of person who worries that
偏离轨道坠向韩国并撞向地球
the moon might suddenly go Korean off course,
这就些许可怕啦
and smashed into earth,
无稽之谈
pretty unlikely.
下一条 科学家发现
Next up, scientists discover
生命比我们所想象的更顽强
that life is even more tenacious than we thought.
这一条相当与众不同 因为
That’s pretty impressive considering we already know,
我们知道生命极其顽强
that life is really Hardy
例如 水熊虫
Take for example, the tardigrade.
这是一种能在真空中生存的微生物
This is an organism that can survive in the vacuum of space
并能够离开水生存持续数年
and can go without water for years on end.
如今 南极科学家已经发现
Now scientists in Antarctica have discovered that
有一个物种的鱼
there’s a species of fish that
能够在低至
can survive in water that reaches
-28华氏摄氏度
negative 28 degrees Fahrenheit
即-2摄氏度的水中生存
which is negative 2 degrees Celsius.
基本上来说 因为水的盐度
Ultimately, the water is only able to keep from freezing
那些水只能维持不结冰
because of how salty it is.
真是极其顽强的生命形态
That’s a pretty Hardy life-form.
今天最令人激动的新闻或许是
And what is perhaps the most exciting news of the day.
一美国航天员和俄国航天员
An American astronaut and Russian cosmonaut
将要进入太空
are launching into space,
当然 是在外部辅助的情况下
with a little help, of course.
基本上 如果你想
Ultimately, if you ever want to be able to step
脱离地球束缚
beyond the bounds of Earth,
去其他星球或者
to visit other planets and
甚至将来有一天可能到达其他星系
maybe even some day reach other star systems,
我们需要明白
we have to understand how long-term spaceflight
长期星际飞行会对身体造成怎样的影响
impacts the human body.
这便是他们的使命由来
That’s where this mission comes in.
你知道 NASA希望
You see, NASA hopes to have a colony
于2030年前在火星上建立根据地
established on Mars by 2030
因此美航天员斯科特·凯莉将飞往国际空间站
So American astronaut Scott Kelly is headed to the ISS
以帮助我们研究这种影响
in order to help us in this effort.
他将接受一系列
He’s going to undergo a series of
心理和医学测试
psychological and medical tests
以让我们了解宇宙对
that should give us a comprehensive understanding
人类躯体的影响
of the impact that space has on the human body.
非常惊奇的是
And in the kind of creepy yet,
同样是非常棒的消息
still extremely awesome side of things
前无古人
for the first time ever,
科学家已经用猛犸的DNA
scientists have taken mammoth DNA
植入大象细胞内
and planted it into elephant cells.
不 我们并不是要制造任何像是疯狂僵尸
No, we’re not going to have any crazy zombie,
长毛象或其它类似的东西
woolly mammoths or anything like that,
然而 这项研究能帮助我们对抗物种灭绝
However, this research could help us combat extinction
如果一切按计划进行
if everything goes according to plan,
我们或许会让真正的像猛犸象的动物
we might have a real live woolly mammoth
在3300年内
walking around the face of the earth
第一次在地球上来回踱步
for the first time in 3,300 years.
那太酷了!
That’s pretty awesome!
我是说你可以你当地动物园看到猛犸象
I mean you could see a mammoth at your local zoo.
当然 这项研究将持续多年
Of course, this research is years and years out.
但是 第一步仍至关重要
However, it’s a pretty notable first step.
今天科学六十秒第一辑到这里就结束了
That concludes our first edition of today’s science in 60 seconds
如果你喜欢这期视频
if you like what you see,
如果你想看到更多视频或者想帮我们提高
if you’d like to see more of it and probably help us improve.
我们需要你的帮助
Well, we need your help.
你知道 从夸克到类星体节目只有两个人而已
You see, from quarks to quasars is really just two people,
我就是其中之一 乔琳娜
I’m one of them, Jolene.
我们所做的需要大量时间 金钱和精力
And everything we do requires a lot of time, money and effort,
我们想通过做视频 博客或其他的
and we’re trying to branch out by doing videos
来尝试拓展开来
and podcasts and things like that.
但我们不能没有你的参与
But we can’t do it without you.
所以点击我们的众筹账号
So head over to our patreon account,
获取原创内容
get access to unique content
并且更深地了解我们吧
and get to know us a little bit better.

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视频概述

主持人辛苦耕耘的栏目 带你走进一个极速而丰富多彩的科学世界

听录译者

eyas闯江湖

翻译译者

zohar

审核员

ZY

视频来源

https://www.youtube.com/watch?v=_h3z2Y2-5fs

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