Pictures Ganesha, Mars, Space Shuttle, Northern Lights

Northern Light, Aurora in the winter sky of Norway

What is Northern Lights?

Northern lights or aurora is available in Norway as well as in some parts of North America. Northern light is visible during clear night of peak winter, when various colors of light will be seen in the sky making a panoramic view. Northern lights occur mostly in the magnetic zone of north pole. This zone extends over northern parts of Scandinavia which includes Iceland and some southern parts of Greenland and continues over northern Canada, Alaska and Siberia. Northern lights form when large number of free electron stream originated from the Sun, rush in nature towards the magnetic field of Earth at a very high speed and collide with air particles. As a result, the air lights up like in a fluorescent light after, oxidation with atmospheric oxygen. The colors of collision reflect like gases which we find in the form of light with different colors like blue, red, yellow, green and violet as well. The violet color forms due to the presence of gaseous nitrogen, whereas oxygen help produce red color respectively. The Sun holds the ultimate control for the formation of aurora. This is a common belief that charged particles of the Sun assembles in magnetic field of the earth very easily and well visible during clear night of winter. Images of northern lights were taken from Aftenposten.no, a local daily in Oslo, Norway.

Existence of water is possible in each and every planet except the Sun and the Uranus.