This metallic core gives Earth its characteristic magnetic field, which has played an extremely important role in the history of our planet.

这种金属核赋予地球特有的磁场，在地球的历史上发挥了极其重要的作用。

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Another new discovery concerns Mercury's magnetic field. The planet, along with Earth, is alone among the terrestrial planets in having a global magnetic field.

另一个新发现是关于水星磁场的：水星和地球是所有的类地行星中有球星磁场的行星。

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The Ascension in simplistic terms, is the expansion of the earth from the (magnetic) polarity of the 1st three dimensions to the zero-point fields of the crystalline dimensions.

用简单的名称来解释扬升：是地球从前面三个维度的(磁)极性扩展到水晶次元的零场域。

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Professor Taylor says his team used this method to discover that butterflies depend on information about the Earth's magnetic fields.

VOA: special.2010.04.27

Scientists say the northern lights are created by the sun's super hot atmosphere, which blasts particles into the protective magnetic field surrounding the Earth.

CNN: 'Dancing lights' draw thousands to frozen north

They'd balance a spoon-shaped piece of magnetic rock on any flat surface, and since it was magnetic, the handle would swivel to align itself with the Earth's magnetic poles.

FORBES: Magazine Article

They will focus on the places above the poles where the wind pierces the earth's magnetic defences and causes, among other things, the shimmering lights of the aurora borealis and aurora australis, and interference with radio communications.

ECONOMIST: Birds of a feather