ِAurora

An aurora is a flickering light mostly caused by the sun's radiation, usually found near the poles. They are red, green and occasionally blue, and can sometimes resemble fire. In fact, the Roman Emperor Tiberius thought a city was on fire, so he sent firefighters to that city. The city on fire was actually a city against a backdrop of a red aurora.

An aurora can happen in the Arctic, around the North Pole (Aurora borealis - Dawn of the North - there it is also called the Northern Lights) or in the Antarctic around the South Pole (Aurora australis - Dawn of the South). An aurora can often be seen from long distances and stretching in the sky many hundreds of kilometers or miles.

Auroras can only be seen at night because their light is not as strong as the light of day. For instance, faint stars can be seen through the aurora. However they do happen during the day as well.

Maha Alsaif