Aururõhud

Aururõhud, also known as auroras, are natural light displays predominantly seen in high-latitude regions near the Arctic and Antarctic. They occur when charged particles from the sun, primarily electrons and protons, interact with Earth's magnetosphere and atmosphere. These particles are funneled towards the polar regions by Earth's magnetic field, where they collide with gas molecules in the atmosphere, transferring energy and causing the molecules to emit light. The most common colors observed in auroras are green, which is produced by oxygen molecules located about 60 miles above the Earth, and red, which is produced by oxygen molecules at higher altitudes. Nitrogen molecules can also produce blue and purplish-red auroras. The intensity and color of auroras can vary depending on the strength of the solar wind and the composition of the atmosphere. Auroras are typically visible in the night sky, but they can also be seen during the day, especially near the poles. They are a popular subject for scientific research and have been observed and documented for centuries.