Northern Lights
The aurora borealis is a very beautiful phenomenon of nature that occurs at the north pole of the Earth. It results from the impact of solar winds with the planet's magnetic field.
Bright lights characterize this manifestation of nature that can be seen in only a few places in the world.
How and Where Does It Happen?
In addition to emitting light, the Sun also emits solar winds, which are filled with energy-charged subatomic particles.
Called plasma, these particles cause the phenomenon of light when they come into contact with the magnetic fields of the poles.
The Ionosphere is the layer of the atmosphere most affected by magnetic fields.
The main colors formed are green and red. Green is formed by the emission of oxygen atoms in high atmospheric layers.
Red is formed by the emission of nitrogen atoms, in greater quantity, and of oxygen, in lower layers.
The aurora borealis is visible to the naked eye. It can be seen in the late afternoon and at night, in the first months of the year, particularly in January, February and March, when most of the snow has already fallen and the skies are clear in the northern hemisphere.
It can also be seen in autumn, in the months of September and October.
The phenomenon is visible in Norway, Sweden, Denmark, Alaska, Finland, Scotland, Russia, Iceland, Greenland and Canada.
