小喜故事小屋 · 极光的秘密

极光的秘密

The Secret of the Aurora

阿鸦小喜

📜 科学小知识

世界各地的人们，曾经对夜空中飘动的彩色光带有过很多浪漫的想象——有人说那是祖先在天上跳舞，有人说那是勇士盔甲反射的光芒。这种神奇的现象，就是我们今天说的"极光"。

People around the world have long had many romantic ideas about the colorful bands of light that drift across the night sky, some said it was their ancestors dancing in the heavens, others said it was light reflecting off a warrior's armor. This magical phenomenon is what we call the "aurora" today.

不过今天阿鸦不讲传说，要讲讲极光背后真正的科学原理——原来这跟遥远的太阳，还有地球看不见的"隐形铠甲"，都有关系。

But today, A-Ya isn't going to tell a legend, instead, he'll explain the real science behind the aurora, it turns out this has to do with the distant sun, and an invisible "armor" that surrounds the Earth.

（苹果收听最佳 · 其他手机请用 Chrome 浏览器）

🌌 夜空中飘动的绿色和紫色光带，到底是怎么来的？
为什么颜色不一样？
付费解锁完整故事 · 极光的科学秘密 · 趣味词卡

一次解锁 · 1年有效 · 支付宝/微信/PayPal

📚 故事系列

🌌 极光的秘密本期 · NOW
🎣 姜子牙渭水垂钓点击进入
⛰️ 山精与水精点击进入
👑 贾姆希德的飞天宝座点击进入
☁️ 天空为什么那么远点击进入
🐴 塞翁失马点击进入

✨ 每期包含

📖

双语故事

💬

情景对话

🎴

词汇卡片

🔊

语音朗读

🌌 第63期：极光的秘密

🔒 后续内容已锁定
一次付费解锁完整故事 · 情景对话 · 趣味词卡 · 1年时效

小喜看到画里夜空中飘着一条条绿色和紫色的光带，像丝带一样在天上飘动，好奇地问："阿鸦，这是什么呀，天上怎么会有彩色的光呢？"

Magpie saw a painting of green and purple ribbons of light drifting across the night sky like flowing silk, and asked curiously, "A-Ya, what is this? Why is there colorful light in the sky?"

（苹果收听最佳 · 其他手机请用 Chrome 浏览器）

阿鸦说："这叫极光，是很多人一辈子都想亲眼看一次的景象。它的由来，跟遥远的太阳还有咱们地球，都有很大的关系。"

A-Ya said, "That's called the aurora, a sight many people dream of seeing with their own eyes at least once in their life. Where it comes from actually has a lot to do with the distant sun, and with our own Earth."

小喜惊讶："太阳？太阳离我们那么远，怎么会有关系呀？"

Magpie was amazed, "The sun? The sun is so far away from us, how could it be related?"

阿鸦说："太阳其实一直在往太空里抛出许多看不见的小颗粒，其中一部分会朝着地球飘过来。"

A-Ya said, "The sun is actually constantly flinging countless invisible tiny particles out into space, and some of them drift toward Earth."

小喜追问："那这些小颗粒飞到地球，会撞到我们吗？"

Magpie pressed on, "So when these tiny particles reach Earth, will they hit us?"

阿鸦说："别担心，地球有一层看不见的隐形铠甲，会把大部分颗粒挡在外面，只放一小部分从南北两极附近溜进来。"

A-Ya said, "Don't worry, Earth has an invisible layer of armor that blocks most of the particles, only letting a small portion slip in near the North and South Poles."

小喜好奇："那这些溜进来的颗粒，后来怎么样了呀？"

Magpie was curious, "So what happens to the particles that slip in?"

阿鸦说："它们一头撞进了天空高处的空气里，撞出了漂亮的光——具体是怎么撞出来的，还有为什么会有好几种颜色，得从头讲起。"

A-Ya said, "They collide head-on with the air high up in the sky, and that collision produces beautiful light, exactly how that happens, and why there are several different colors, we'll have to start from the beginning."

🌌 阿鸦讲故事 · 极光的秘密

📍 场景：极地的雪原之夜

🐦

阿鸦，这些漂亮的光带到底是什么呀？

A-Ya, what exactly are these beautiful bands of light?

🐦 小喜好奇地问……

🐦‍⬛

太阳除了发光发热，还会不停地向太空喷出大量带电的小颗粒，科学家把这股颗粒流叫做太阳风。太阳风一路飞行几千万公里，其中一部分会朝着地球飘过来。

Besides giving off light and heat, the sun also constantly blasts out huge amounts of tiny charged particles into space, scientists call this stream of particles the solar wind. The solar wind travels tens of millions of kilometers, and some of it drifts toward Earth.

📌 太阳风 (tàiyáng fēng) = solar wind

🐦

那这些带电的小颗粒，是怎么变成漂亮的光带的呢？

So how do these charged particles turn into beautiful bands of light?

🐦 小喜好奇地问……

🐦‍⬛

地球周围其实包裹着一层看不见的磁场，就像一层隐形的铠甲，能挡住大部分太阳风。但在南北两极附近，磁场会把没挡住的那部分颗粒，引导着冲向高空的大气层。这些颗粒一头撞进大气层里的气体分子，把能量传给了它们，气体分子就发出光来，这就是极光。

Earth is actually surrounded by an invisible magnetic field, like a layer of invisible armor, that blocks most of the solar wind. But near the North and South Poles, the magnetic field guides the particles it couldn't block straight toward the upper atmosphere. These particles collide head-on with gas molecules in the atmosphere, transferring their energy to them, and the gas molecules give off light. That is the aurora.

📌 磁场 (cíchǎng) = magnetic field

🐦

那为什么极光会有好几种颜色呀？

So why does the aurora come in several different colors?

🐦 小喜忍不住问……

🐦‍⬛

这跟被撞到的气体种类和高度有关系。在大约一百到三百公里高的地方，氧气分子被撞出的光是绿色的，这也是极光里最常见的颜色。更高一点的地方，氧气分子发出的光会变成粉红色或深红色，而氮气分子被撞到时，则会发出蓝色或紫色的光。不同的高度、不同的气体，就拼出了极光丰富的颜色。

That has to do with the type of gas being struck and the altitude. At around one hundred to three hundred kilometers up, oxygen molecules struck by particles give off green light, which is also the most common aurora color. A bit higher up, oxygen molecules give off pink or deep red light, while nitrogen molecules, when struck, give off blue or purple light. Different altitudes and different gases together create the aurora's rich range of colors.

📌 撞击 (zhuàngjī) = collision

🐦‍⬛ 阿鸦说

小喜感叹道："原来漂亮的极光，是这么科学的一件事呀！"阿鸦点点头："是呀，看一次真正的极光，是很多人一生的心愿清单上都会写的一项。冰岛、挪威、阿拉斯加、加拿大北部，都是观测极光很有名的地方，说不定你以后也能亲眼去看一次呢。"
Magpie sighed, "So the beautiful aurora is actually such a scientific thing!" A-Ya nodded, "That's right. Seeing a real aurora with your own eyes is something many people put on their lifetime bucket list. Iceland, Norway, Alaska, and northern Canada are all famous places to watch it, maybe someday you'll get to see one in person too."

🎴 极光词汇卡 · Aurora Word Cards

🌌

极光

jíguāng

aurora

很多人想亲眼看一次极光。
Many people want to see the aurora with their own eyes.

☀️

太阳风

tàiyáng fēng

solar wind

太阳风一路飞向地球。
The solar wind travels all the way to Earth.

🧲

磁场

cíchǎng

magnetic field

地球周围有一层磁场。
Earth is surrounded by a magnetic field.

💥

撞击

zhuàngjī

collision

颗粒撞击气体分子发出光。
Particles collide with gas molecules and give off light.

🫧

氧气

yǎngqì

oxygen

氧气分子被撞出绿色的光。
Oxygen molecules give off green light when struck.

🌍

大气层

dàqìcéng

atmosphere

颗粒冲向高空的大气层。
The particles rush toward the upper atmosphere.

✅

心愿清单

xīnyuàn qīngdān

bucket list

看极光在她的心愿清单上。
Seeing the aurora is on her bucket list.

🔬

科学

kēxué

science

极光背后是有趣的科学原理。
Behind the aurora is an interesting scientific principle.

🌌 小喜学到了 · Fun Facts

不只是地球有极光，木星和土星的磁场比地球强得多，它们的极光也比地球的亮得多；国际空间站上的宇航员，甚至能从太空里俯瞰地球的极光，看到它像一圈发光的光环，围绕在地球的两极附近。🌌✨

Earth isn't the only place with an aurora, Jupiter and Saturn have magnetic fields far stronger than Earth's, and their auroras are also far brighter. Astronauts aboard the International Space Station can even look down at Earth's aurora from space, seeing it as a glowing ring surrounding the planet's poles.

🔓 扫码付款解锁