Auroras constantly move and change shape.

极光不断移动，伴随着形状的改变。

Regardless of what you believe, witnessing the northern lights will surely give you goosebumps as there's nothing like the bright dancing lights of the aurora.

论你相信与否，目睹极光肯定会让你震撼，没有什么能比得上极光的璀璨舞姿。

You might know it as the Northern Lights but its technically called the aurora borealis in the Northern Hemisphere and the aurora australis or Southern Lights in the Southern Hemisphere.

你可能知道它的名字是北极光，但是它的名字在北半中叫做欧若拉，在极光中叫做南极光，在南半中叫做南极光。

Who gave the aurora borealis its name?

谁为北极光命的名？

Steve is an aurora, and a good looking one, too.

史蒂夫是极光，好看的极光。

Saturn's sound waves are related to the auroras near the planet's poles.

土星的声波与行星两极附近的极光有关。

You might know it as the Northern Lights, but it's technically called the aurora borealis in the northern hemisphere and the aurora Australia's or Southern Lights in the southern hemisphere.

你可能知道它叫北极光（Northern Lights），但在术上，北半的极光叫aurora borealis，南半的极光叫aurora Australias或者Southern Lights。

This is one of the best places on planet Earth to check out the aurora borealis, better known to most people as the Northern Lights.

这里是上最适合观赏极光的方之一，大多数人都把它称为北极光。

These ghostly auroras are a thousand times more powerful than Earth's northern and southern lights.

这些可怕的极光要1000倍强南极和北极的极光。

Side effects of increased solar activity are the auroras that dance around Earth's poles.

太阳活动增加的副作用是在两极舞动的极光。

Approximately the size of Switzerland, the Arctic National Park is virtually untouched by man with no rail lines or roads, witness the empty mountains and meadows and gorgeous aurora lights.

北极之门国家公园的占面积和瑞士差不多大，几乎没有人类的足迹，没有铁路或公路，其拥有空旷的山脉、草和绚丽的极光。

The aurora is a stunning display of Earth's magnetic field in action.

极光就是磁场发挥作用的绝佳展示。

In fact, the aurora borealis is caused by storms on the sun.

而事实上，北极光是由太阳风暴引起的。

It caused brilliant auroras far south of the Arctic.

它引发色彩斑斓的极光最南到达北极。

Auroras can also affect power and communications.

极光也会影响电力和通讯。

The electrified plasma from the CME is deflected by the Earth's magnetic field, diverting the energy storm to the North and South Poles, where energetic particles fall into the atmosphere, causing the atmosphere to glow, and creating beautiful auroras.

来自CME的带电等离子体在磁场作用下偏转，影响线电通信，或对宇航员造成危害，在高能量粒子掉入大气层的方，导致大气层发光，并创造出美丽的极光。

For a better estimate, scientists used more than a decade's worth of Hubble data to track the movement of Uranus's auroras, which helped them zero in on the actual location of the planet's magnetic poles.

为了更精确估算， 科家们利用了超过十年的哈勃数据来追踪天王星极光的移动，这帮助他们准确定位了该行星磁极的实际位置。

The impact of the previous geomagnetic storm on satellite operations was not significant, but it has allowed many skywatching enthusiasts in northern China, including Beijing, to witness the aurora borealis.

之前的磁风暴对卫星运行的影响并不大，但它让包括北京在内的中国北方许多天文爱好者目睹了北极光。

The auroras are one of mankind's oldest mysteries, and we've come up with some crazy theories of how to explain it along the way.

极光是人类最老的神秘事物之一，而我们由古至今为了解释它想出了一些很疯狂的理论。

To understand the cause of auroras, first picture the Earth enclosed by its magnetosphere, a huge region created by the Earth's magnetic field.

为了解北极光成因，我们需要了解被磁层包围，它是一种由磁场所产生的气体层。