Valoilmiöt
Valoilmiöt are natural light phenomena that can be observed in the Earth's atmosphere. They are caused by the interaction of sunlight or moonlight with atmospheric particles, such as ice crystals or water droplets. These interactions can result in a variety of visual effects, often beautiful and sometimes spectacular.
One of the most common valoilmiöt is the rainbow. Rainbows are formed when sunlight is refracted and
Another well-known valoilmiö is the halo. Halos are rings of light that appear around the sun or
Aurora borealis (Northern Lights) and aurora australis (Southern Lights) are perhaps the most dramatic valoilmiöt. These