However, the Earth's axis is unstable and wobbles like a gyroscope over a period of 26, 000 years.

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Because Earth's axis is tilted, all parts eventually get some darkness.

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As a sword-wielding Sephiroth fell on Aerith like an avenging angel, I felt the Earth tilt on its axis.

ENGADGET

Other that it is all natural caused by changes in solar activity, the angle of the axis of the earth, something, anything, and now cosmic rays and the formation of Aitken nuclei.

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Matija Cuk, from the Seti Institute, and colleagues ran new simulations in which the early Earth was rotating on its axis in just a few hours prior to the impact - compared to the present 24 hours.

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The Geographic pole is the top of the axis on which the earth spins, the Magnetic pole is where the compass points to, and the Arctic pole is the point on the Arctic Ocean furthest from any land.

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The Geomagnetic pole is the north end of the axis of the geomagnetic field which surrounds the Earth and extends into space as the magnetosphere.

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We have the seasons we currently do, due to the Earth's tilt at an angle of 23 degrees on its axis.

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