Interactive transcript · 191 lines
Good morning, science lovers!
早上好，科学爱好者们！
Welcome to TalkCast, your bright and early morning digest of the most fascinating scientific
欢迎收听 TalkCast，这是为您带来的关于最迷人科学的清晨摘要
breakthroughs on Earth and beyond.
涵盖地球及以外领域的重大突破。
I am Thomas.
我是托马斯。
And a very warm morning to you all.
向大家致以极其温暖的早晨问候。
I am Chloe.
我是克洛伊。
Today is September 10th, 2026.
今天是2026年9月10日。
It is absolutely wonderful to have you starting your day with us.
能有大家与我们一起开启新的一天，真是绝对太棒了。
Before we dive into the wonders of the cosmos, we want to say a huge thank you to all our amazing
在我们深入探索宇宙的奇观之前，我们要向所有棒极了的
TalkCast members.
TalkCast 会员表示巨大的感谢。
Your support keeps our show running every single day. Absolutely.
您的支持让我们的节目每天都能保持播出。确实如此。
We truly appreciate every single one of you.
我们真心感激你们当中的每一位。
And if you are not a member yet, please consider joining our TalkCast family.
如果您还不是会员，请考虑加入我们的 TalkCast 大家庭。
We need your support to keep bringing you these deep dives into the exciting world of science.
我们需要您的支持，以继续为您带来对精彩科学世界的深度探索。
Now, let us check out what is making headlines this morning.
现在，让我们看看今天早上的头条新闻。
We are starting high up in the gas giant Saturn, where astronomers using the Hubble Space Telescope
我们将从气体巨星土星的高空开始，那里的天文学家利用哈勃空间望远镜
have spotted a massive, mysterious 10 -sided storm spinning at its south pole.
发现了一个在其南极旋转的巨大而神秘的十边形风暴。
Then, we will shrink down to the microscopic world to meet a newly discovered microbe in Scotland
接着，我们将缩小到微观世界，了解苏格兰新发现的一种微生物
that reproduces in a way that sounds like a sci -fi movie.
它的繁殖方式听起来就像科幻电影一样。
After that, we will plunge deep into the South China Sea to see how a team of deep -sea worms and
之后，我们将潜入南海深处，看看一组深海蠕虫和
microbes quickly saved the day by sealing an accidental methane leak.
微生物如何通过封堵意外的甲烷泄漏来迅速化险为夷。
For our quickfire round, we will marvel at a massive 4 ,000 -year -old network of termite mounds in
在我们的快问快答环节，我们将惊叹于巴西庞大的拥有4000年历史的白蚁丘网络
Brazil and rewrite the history of a prehistoric American cat.
并重写一种北美史前猫科动物的历史。
And finally, we'll close with a delightful story of 28 ,000 lost rubber ducks that help scientists
最 后，我们将以一个令人愉快的故事结束：28000只失踪的橡胶小鸭帮助科学家
map our global ocean currents.
绘制我们的全球洋流图。
It is a beautiful lineup of stories today, so let us get started with Saturn.
今天的故事阵容非常精彩，所以让我们从土星开始吧。
For decades, planetary scientists have been absolutely fascinated by Saturn's north pole.
几十年来，行星科学家一直对土星的北极感到绝对着迷。
It features a giant, permanent, six -sided jet stream called the hexagon.
它的特征是一个巨大的、永久性的六边形喷射气流，被称为六边形。
But now, astronomers have detected a giant geometric twin at the south pole, a 10 -sided storm.
但现在，天文学家在南极探测到了一个巨大的几何孪生体——一个十边形风暴。
Wait, did you say 10 sides?
等等，你刚才说了10条边？
So, a decagon?
所以，是一个十边形？
Precisely, a decagon.
准确地说，是一个十边形。
This massive wave pattern is roughly 104 ,000 miles wide, swirling in the clouds right over Saturn's
这种巨大的波纹图案宽约10.4万英里，在土星云层正上方旋转
south pole.
南极。
Wow, that is mind -bogglingly huge.
哇，那真是令人难以置信地庞大。
But Thomas, how on Earth does a planet make a perfect geometric shape like a 10 -sided decagon in its clouds?
但是托马斯，一颗行星到底是如何在其云层中形成像十边形这样完美的几何形状的呢？
Normally, storms on Earth are round like hurricanes.
通常，地球上的风暴就像飓风一样是圆形的。
That is a great question.
这是一个很好的问题。
On Earth, our storms do not have sharp corners because our atmosphere is heavily disrupted by
在地球上，我们的风暴没有尖角，因为我们的大气层受到了极大干扰
landmasses, mountains, and oceans.
源于陆地、山脉和海洋。
But Saturn is a gas giant with no solid surface.
但土星是一颗没有固态表面的气体巨星。
Its winds can blow at hundreds of miles per hour without any friction.
它的风速可以达到每小时几百英里而没有任何摩擦力。
Scientists believe that when winds of different speeds rub against each other at specific latitudes,
科学家认为，当不同速度的风在特定纬度相互摩擦时，
they create stable waves.
它们会产生稳定的波浪。
In the north, it created a six -sided wave.
在北部，它形成了一个六边形波浪。
And in the south, it created a 10 -sided wave.
而在南部，它形成了一个十边形波浪。
Ah, I see.
啊，我明白了。
It's like a cosmic fluid dance.
这就像是一场宇宙流体之舞。
But why does the south pole have 10 sides instead of six?
但为什么南极有10条边而不是6条呢？
It depends on the speed of the jet stream and the temperature of the gas.
这取决于高速气流的速度和气体的温度。
The southern polar atmosphere behaves slightly differently, which allows this 10 -sided pattern to form.
南部极地大气层的表现略有不同，这使得这种十边形图案得以形成。
What's even cooler is that a backyard astronomer actually contributed to this discovery by providing
更酷的是，一位业余天文学家通过提供数据，实际上对此项发现做出了贡献
ground -based images that helped professional astronomers confirm the shape.
地面观测图像帮助专业天文学家确认了这一形状。
No way!
绝不可能！
A backyard astronomer?
一位业余天文学家？
That is so inspiring.
这真是太鼓舞人心了。
It shows that anyone with a telescope and some passion can help map the solar system.
这表明，任何拥有望远镜和热忱的人都能帮助绘制太阳系地图。
It really does.
它确实如此。
Now, let us bring our focus back to Earth and shrink down to the microscopic level.
现在，让我们把焦点带回地球，缩小到微观层面。
Researchers in Scotland have discovered a bizarre new microbe named Calidocium aldermae, and its
苏格兰的研究人员发现了一种名为 Calidocium aldermae 的奇异新微生物，并且它的
reproductive strategy has completely shocked scientists.
繁殖策略彻底震惊了科学家们。
How does a tiny microbe shock a scientist?
一个微小的微生物是怎么震惊科学家的？
Does it walk on tiny legs?
难道它是靠微小的腿走路吗？
Even stranger.
甚至更加奇特。
It acts like a living Russian nesting doll.
它的行为就像一个活生生的俄罗斯套娃。
The mother cell grows her offspring inside her own body.
母体细胞在自己的体内孕育后代。
But it doesn't stop there.
但事情并未就此止步。
The offspring inside her start growing their own babies while they are still inside the mother.
她体内的后代还在母体内部时，就已开始孕育自己的宝宝。
It's essentially a pregnant grandmother microbe.
这本质上就是一个怀孕的祖母级微生物。
Hold on a second.
等一下。
A pregnant grandmother?
一个怀孕的祖母？
So there are generations of babies nested inside each other, all alive at the same time? Exactly.
所以有好几代宝宝互相嵌套在一起，而且同时都是活着的？一点没错。
Nested generations deep.
多代层层嵌套。
When the outermost mother cell gets too crowded, it eventually bursts open, releasing all these
当最外层的母体细胞变得过于拥挤时，它最终会爆裂开来，释放出所有这些
ready -to -go generations into the environment.
蓄势待发的新几代个体进入环境中。
That sounds like something straight out of an alien movie.
这听起来就像是从外星人电影里走出来的情节。
Why would a microbe evolve such a weird way to reproduce?
为什么微生物会演化出如此怪异的繁殖方式？
Scientists believe it is a highly efficient survival strategy.
科学家认为这是一种极其高效的生存策略。
Instead of releasing single, vulnerable spores that have to grow from scratch, this microbe releases
这种微生物并没有释放需要从零开始生长的单一、脆弱的孢子，而是释放
fully developed, multi -generational packages that can immediately start colonizing new areas.
发育完全的多代组合包，能够立即开始在新的区域定居。
It's incredibly robust.
这真是难以置信地强韧。
Nature never fails to find the strangest ways to keep life going.
大自然总能找到最奇特的方式来延续生命。
I'm just glad these things are microscopic. Indeed. Indeed.
我真庆幸这些东西是微观级别的。确实如此。确实。
Now, let us dive deep under the ocean to the South China Sea.
现在，让我们潜入深海，前往中国南海。
Back in 2018, a deep -sea drilling mission accidentally punctured a pocket of methane hydrate under
早在2018年，一次深海钻探任务意外刺破了海底的一处水合物口袋，造成
the seabed, causing a methane gas leak nearly 1 ,800 meters below the surface.
海床，导致海平面下近 1,800 米处发生甲烷气体泄漏。
Oh dear.
噢，天哪。
Methane is a very potent greenhouse gas, right?
甲烷是一种非常强效的温室气体，对吧？
That sounds like a potential ecological disaster.
这听起来像是一场潜在的生态灾难。
Did the scientists manage to plug the leak?
科学家们是否设法堵住了泄漏？
They did not have to.
他们不必这么做。
Nature took care of it.
大自然处理好了这件事。
When researchers returned to the site, they found that the leak had been almost completely sealed by
当研究人员重返现场时，他们发现泄漏点几乎被完全封堵了，
a massive, thriving community of marine life, specifically a giant worm bed.
由一个庞大而繁荣的海洋生物群落，具体来说是一个巨大的蠕虫床。
A worm bed?
一个蠕虫床？
Like deep -sea worms acting as a living band -aid?
就像深海蠕虫充当活体创可贴一样？
Yes, exactly.
是的，确切如此。
Microbes that eat methane quickly moved into the area first.
吃甲烷的微生物首先迅速进入了该区域。
They formed thick mats, consuming the gas and turning it into solid carbonates.
它们形成了厚厚的地毯状菌垫，消耗气体并将其转化为固态碳酸盐。
Then, deep -sea worms colonized these mats, creating a dense, protective layer that physically sealed
随后，深海蠕虫在这些菌垫上定居，形成了一个密实的保护层，物理上封住了
the gas under the seabed.
位于海底下方的气体。
That is unbelievable.
那真是难以置信。
It's like a self -healing ocean.
这就像是一个能够自我愈合的大洋。
But wait, how did it happen so fast?
但等等，这是怎么发生得这么快的？
I thought deep -sea ecosystems took decades or centuries to grow.
我以为深海生态系统需要几十年甚至几个世纪才能形成。
That was the biggest surprise of the study.
那是这项研究最大的惊喜。
Scientists previously thought deep -sea biological filters took a very long time to develop.
科学家们此前以为深海生物过滤器需要极长的时间才能形成。
But this event proved that deep -sea life can react and build a fully functioning barrier in just a
但这一事件证明，深海生命能够做出反应并构建一个功能完善的屏障，只需要
few years.
几年时间。
It shows that our oceans have a much stronger, faster immune system than we realized.
这表明我们的海洋拥有比我们预想中强大得多、迅速得多的免疫系统。
That is incredibly comforting to hear.
听到这个消息真是非常令人欣慰。
But of course, we should still be extremely careful when drilling down there.
当然，我们在那里进行钻探时仍需极其谨慎。
We can't just rely on deep -sea worms to clean up all our messes.
我们不能光靠深海蠕虫来为我们收拾烂摊子。
Absolutely, Chloe.
确实如此，克洛伊。
Prevention is always the best policy.
预防永远是上策。
Now, let us speed things up with our quick -fire round.
现在，让我们在快问快答环节加快节奏。
First, we head to northeastern Brazil, where scientists have mapped a massive region covered in 200
首先，我们前往巴西东北部，在那里科学家绘制了一片庞大的区域，里面有 2 亿个
million evenly spaced mounds.
分布均匀的土丘。
200 million mounds?
2 亿个土丘？
Who built them? Termites.
谁建造了它们？是白蚁。
And get this, some of these mounds are 4 ,000 years old.
而且听好了，其中一些土丘已经有 4,000 年的历史了。
They are not actually nests, but giant piles of dirt excavated from a massive hidden network of
它们实际上不是巢穴，而是从地下庞大隐蔽网络中挖掘出来的巨型土堆
tunnels underground.
地下隧道。
The total soil excavated is equivalent to thousands of great pyramids of Giza.
挖掘出的土壤总量相当于数千座吉萨大金字塔。
That is mind -blowing.
这真是令人震撼。
Termites building a city that outlasts ancient human civilizations?
白蚁建造的城市居然比古代人类文明还要长久？
They are true master engineers.
它们是真正的顶尖工程师。
What is our next brief, Thomas?
托马斯，我们下一个简讯是什么？
Next, we have a major update on the prehistoric cat known as the American cheetah.
接下来，我们有关于被称为美洲猎豹的史前猫科动物的重要更新。
Scientists recently analyzed ancient DNA from fossils found in the Arctic Yukon.
科学家最近分析了在北极育空地区发现的化石中的古代 DNA。
They discovered that this ancient predator was not actually a true cheetah at all.
他们发现这种古代捕食者实际上根本不是真正的猎豹。
It was more closely related to modern cougars and pumas.
它与现代美洲狮和美洲金猫的亲缘关系更近。
Oh, interesting.
哦，真有趣。
So the American cheetah was just a cougar wearing a cheetah disguise?
所以美洲猎豹只是一只戴着猎豹伪装的美洲狮？
In a way, yes.
在某种程度上，是的。
It evolved a slender body and long legs to run fast, just like African cheetahs, but its genetic
它演化出了修长的身材和长腿以快速奔跑，就像非洲猎豹一样，但它的基因
code shows it belongs to a completely different branch of the cat family.
代码显示它属于猫科动物中完全不同的一个分支。
It's a classic case of convergent evolution.
这是趋同演化的经典案例。
Ah, convergent evolution.
啊，趋同演化。
That's when two unrelated species evolve similar traits because they live in similar environments
这是指两种无亲缘关系的物种因为生活在相似的环境中
and face similar challenges, right?
并面临相似的挑战，对吧？
Spot on, Chloe.
完全正确，克洛伊。
It's like two different inventors coming up with the same bicycle design independently.
这就好比两位不同的发明家独立构思出相同的自行车设计。
Great explanation.
精彩的解释。
I love that analogy.
我喜欢这个类比。
Now, Thomas, I'm dying to hear about these 28 ,000 rubber ducks.
现在，托马斯，我非常想听听那 28,000 只橡胶小黄鸭的故事。
How did bath toys end up mapping the ocean?
洗澡玩具最终是怎么绘制出海洋地图的？
This is one of the most famous and delightful accidents in oceanography.
这是海洋学历史上最闻名且令人称奇的意外之一。
In 1992, a cargo ship traveling from Hong Kong to the United States encountered a severe storm in
1992 年，一艘从香港开往美国的货轮遭遇了强风暴，地点在
the Pacific Ocean.
太平洋。
A shipping container broke open and spilled 28 ,000 rubber ducks, turtles, frogs, and beavers into
一个海运集装箱破裂开来，将 28,000 只橡胶鸭、乌龟、青蛙和海狸洒进了
the sea.
大海。
Oh my goodness.
哦，我的天哪。
A literal floating army of bath toys?
一支名副其实的漂浮浴室玩具大军？
What did the oceanographers do?
海洋学家们做了什么？
Instead of ignoring it, oceanographers realized this was a golden opportunity.
海洋学家们并没有忽视它，而是意识到这是一个绝佳的机会。
They started tracking where these toys washed ashore.
他们开始追踪这些玩具在何处冲上岸。
Over the next 20 years, the ducks traveled thousands of miles.
在接下来的 20 年里，这些鸭子漂流了数千英里。
Some washed up in Alaska, some made it to Hawaii, and some even drifted through the Arctic ice to
有的被冲上了阿拉斯加，有的到达了夏威夷，甚至还有些漂流穿过北极冰层到达了
the Atlantic Ocean, washing ashore in Maine and Europe. Wow.
大西洋，冲上了缅因州和欧洲的海岸。哇。
From the Pacific to the Atlantic through the Arctic?
从太平洋穿过北极到达大西洋？
That is an epic journey for a little plastic duck.
对于一只小塑料鸭来说，这真是一场史诗般的旅程。
It really was.
确实如此。
By tracking the dates and locations of where the ducks were found, scientists were able to create
通过追踪发现鸭子的日期和位置，科学家们得以绘制出
the most detailed maps of global ocean currents and gyres ever made.
有史以来最详细的全球洋流和环流图。
That is brilliant.
那太绝妙了。
It turned a shipping accident into a beautiful 20 -year -long scientific study.
它将一次航运事故变成了一项长达 20 年的美妙科学研究。
I wonder if there are still some ducks floating out there today.
我好奇今天是否还有一些鸭子漂浮在外面。
There might very well be.
极有可能确实还有。
Some might still be trapped in the ice or floating in the great ocean garbage patches.
有些可能仍被困在冰层中，或者漂浮在大海洋垃圾带中。
And that brings us to the end of today's wonderful morning journey through science.
这也带我们走向了今天美妙晨间科学旅程的尾声。
From the geometric storms of Saturn to the resilient deep sea worms of the South China Sea.
从土星的几何风暴，到南海生命力极强的深海蠕虫。
And finally, to our adventurous rubber ducks.
最后，还有我们充满冒险精神的橡胶鸭。
What an amazing set of stories.
多么令人惊叹的一组故事啊。
Now, for today's question for our listeners, if you could design a simple, everyday object, like a
现在，给我们的听众出今天的题目：如果你可以设计一个简单日常的物品，比如
rubber duck, to help scientists map or study something hidden on Earth, what object would you choose?
一只橡胶鸭，来帮助科学家绘制或研究地球上隐藏的事物，你会选择什么物品？
And what would it track?
它又会追踪什么呢？
That is a wonderful question, Chloe.
这是一个很棒的问题，克洛伊。
I would love to hear what our creative listeners think.
我很想听听我们富有创意的听众们是怎么想的。
Please write down your ideas in the comments section below, or take a look at what others are suggesting.
请在下面的评论区写下你的想法，或者看看其他人提出了什么建议。
We always find your ideas so inspiring.
我们总是觉得大家的想法非常富有启发性。
Yes, please do.
是的，请一定要留言。
And if you enjoyed today's episode, don't forget to hit that subscribe button, share TalkCast with
如果你喜欢今天的节目，别忘了点击订阅按钮，将 TalkCast 分享给
your friends, and leave us a review on your favorite platform.
你的朋友们，并在你最喜欢的平台上给我们留下评价。
A quick reminder for our language learners, the full English script of today's morning broadcast is
给语言学习者们一个温馨提示，今天晨间广播的完整英文文稿
published regularly on our official WeChat public account, TalkCast.
会定期发布在我们微信官方公众号 TalkCast 上。
It is a fantastic tool to read along while you listen to practice your pronunciation and build your vocabulary.
这是一个绝佳的工具，边听边读可以练习发音并丰富你 的词汇量。
Thank you all so much for starting your morning with us.
非常感谢大家与我们一起开启美好的清晨。
Have a fantastic day, and we will see you tomorrow.
祝你有美妙的一天，我们明天见。
Goodbye, everyone.
再见，大家。
Keep exploring.
保持探索。
