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本节目将带领大家探索谜样的太阳，深入了解太阳对我们过去、现在、未来生活的重要性。也探讨了太阳如何影响地球的重大科学发现，它每秒钟所释放的能量足够人类使用百万年。它仍是我们未来唯一的希望。
v. 爆发
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- It sits a million miles away from the Earth
- 它位于距地球一百万里处的
- at the Lagrangian point
- 拉格朗日点
- where the gravitational pull from the Earth and the sun is equal.
- 此处地球和太阳的引力相等
- Fixed in space it has an uninterrupted
- 这具固定在太空中的卫星可不受任何阻碍地
- view of the sun and its tantrums.
- 观察太阳及其狂暴行为
- It has completely transformed our understanding
- 这完全颠复了我们既有的观念
- you can essentially see right from inside the sun,
- 因为我们可以从太阳内部开始
- right through to the coronal mass ejections
- 一路看到离开太阳的
- as they're leaving the sun,
- 日冕物质抛射
- so you're seeing way out to 30 solar radii.
- 即30倍于太阳半径的距离
- Soho has played a key role in understanding
- SOHO大大增进了我们
- the explosive power of the sun.
- 对太阳爆炸性威力的了解
- By blocking out the discit simulates an eclipse,
- 它可以遮住日面模拟日蚀现象
- revealing the outer atmosphere and
- 呈现太阳的外气层和
- the true scale of the sun's largest eruptions.
- 大型喷发的真实规模
- These are solar flares and coronal mass ejections
- 这些是喷发自太阳黑子核心的
- and they erupt from the heart of sunspots.
- 太阳闪焰和日冕物质抛射
- The temperatures in a solar flare will be tens of
- 太阳闪焰内的温度高达数千万度
- millions of degrees so it's an extremely hot,
- 所以是温度在短时间内
- very dramatic change in temperature over a short period of time.
- 发生高热、剧烈的改变
- When they erupt completely you can get masses
- 完全喷发时，可以看到
- which are roughly the mass of Mount Everest
- 质量相当于圣母峰的团块
- being flung out into the solar system.
- 被抛射进入太阳系
- At solar minimum,flares are infrequent.
- 在太阳活动极小期间，闪焰并不常见
- But every 11 years when the cycle peaks, at solar max,
- 但每隔11年周期到达顶峰，即太阳活动极大期
- the sun puts on the best firework display in the solar system.
- 太阳会出现太阳系中最壮观的烟火戏码
- Solar astronomers are now beginning to
- 太阳天文学家正逐渐开始
- understand the cause of these explosions.
- 了解这种爆炸事件的起因
- They are not caused by the power of fusion.
- 它们并非肇因于核融合的能量
- There is another force at work.
- 而是另一种力量的运作
- It is the force of magnetism.
- 这种力量就是磁力
- The sun is covered in a complex network magnetic fields.
- 太阳复盖着由磁场组成的复杂网路
- A magnetic map shows a familiar patchwork
- 太阳表面的磁场分布
- on the face of the sun.
- 看来十分眼熟
- The areas of the strongest fields coincide exactly
- 磁场最强的部位
- with the position of sunspots.
- 正好就是太阳黑子的位置
- Here the magnetic field strength can be amplified 10,000 times.
- 磁场的力量在这里可以放大一万倍
- It turns out that the regions of the strongest magnetic field
- 原来太阳磁场最强的区域
- on the sun are in the sunspots.
- 就是太阳黑子
- And in the units that we use sunspot magnetic fields
- 我们测量到的磁场强度
- are roughly a thousand,
- 约为一千
- two thousand,maybe three thousand gauss.
- 两千，或许到三千高斯
- But if you look at magnets like the ones I'm playing with here,
- 但是我手上这个磁铁
- the magnetic field in these magnets
- 的磁场约为一千
- is about a thousand to 1500 gauss.
- 到一千五百高斯
- So these have roughly the same
- 所以磁场强度
- magnetic field strength as a sunspot.
- 和太阳黑子差不多
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