Loisteet

Loisteet is a Finnish term that translates to "auroras" or "northern lights" in English. It specifically refers to the natural light displays in the Earth's sky, predominantly seen in high-latitude regions. These celestial phenomena are caused by charged particles from the sun, known as solar wind, interacting with the Earth's atmosphere. When these energetic particles collide with atoms and molecules in the upper atmosphere, they excite them, causing them to emit light.

The colors of loisteet are determined by the type of gas particles and the altitude at which the collisions occur. Oxygen atoms typically produce green and red light, while nitrogen molecules can create blue and purple hues. The most common color observed is green, which is emitted at lower altitudes. The intensity and patterns of loisteet can vary significantly, ranging from faint, diffuse glows to vibrant, dancing curtains of light that sweep across the sky.

Loisteet are a significant part of the cultural heritage and folklore of many Nordic countries. They have inspired myths, legends, and art for centuries. In Finland, the term loisteet is often used poetically to describe the magical and awe-inspiring beauty of these natural light shows. Observing loisteet is a popular activity for tourists and locals alike, especially during the dark winter months when the chances of seeing them are highest.