Nature in Norway, Northern Lights in Tromsø, in HD

Nature in Norway, Northern Lights also called Polar Lights or Aurora in Tromsø, in HD
An aurora is a natural light display in the sky, particularly in the polar regions, caused by the collision of charged particles directed by the Earth's magnetic field. An aurora is usually observed at night and typically occurs in the ionosphere. It is also referred to as a polar aurora or, collectively, as polar lights. These phenomena are commonly visible between 60 and 72 degrees north and south latitudes, which place them in a ring just within the Arctic and Antarctic polar circles. Auroras do occur deeper inside the polar regions, but these are infrequent and often invisible to the naked eye. LINK: Youtube

Amazing Northern Lights Time Lapse

The Northern Lights are one of nature's most spectacular visual phenomena, and in this time lapse video they provide a breathtaking display of light, shape, and color over the course of a single night in Norway. LINK: Youtube

Time-lapse video of the Northern Lights

This time-lapse video (you'll have to follow the link to watch) shows a far more spectacular display over the Ringebu Fjell in southern Norway, captured by photographer Bernd Proschold. The moment when the clouds clear away, and the lights burst into view is absolutely breathtaking. LINK: Boingboing

The World At Night: A Glimpse of the Far North

Photos of the Northern Lights

James Pugsley's Astronomy North, a lovely site that has some amazing images of the Aurora Borealis.

Besides the many cool pictures, Astronomy North provides time-lapse photography videos of the Aurora Borealis, weather and viewing forecasts, and loads of Canadian astronomy resources. I also found the icon on today's Aurora Forecast page strangely comforting. LINK