Auroras
Auroras, also known as polar lights, are natural light displays in the Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). They are caused by the interaction between the solar wind and the Earth's magnetic field. The solar wind is a stream of charged particles that flows out from the Sun and interacts with the Earth's magnetic field, which is generated by the motion of molten iron in the Earth's core. When the charged particles from the solar wind collide with the Earth's magnetic field, they are deflected towards the poles, where they collide with atoms and molecules in the Earth's upper atmosphere. These collisions cause the atoms and molecules to become excited and emit light, creating the auroras.
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