The science behind one of the most beautiful natural phenomena. 🌌
An aurora can be defined as an atmospheric phenomenon that takes place when
As the particles collide with atoms and molecules in Earth’s upper atmosphere, electrons in Earth's magnetosphere transfer their energy to oxygen and nitrogen atoms and molecules. As the gases return to their normal state, they emit small bursts of energy in the form of light. The glowing aurora is made up of a billion individual collisions, lighting up the magnetic field of Earth.Auroras may have been depicted in some prehistoric cave paintings.
Green auroras are the most common because the Earth’s atmosphere contains a lot of atomic oxygen and human eyes are more sensitive to the green color. In addition, the blue and purple colors are not very visible in the night sky.Blue and purple lights may be more common at lower altitudes, this is why they are typically found at the lower edges of the “curtains” of the auroras.
The northern lights are commonly spotted in Alaska, especially in the area of Fairbanks, which is located under the aurora oval.
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