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Keyword: aurora
![Полярное сияние над телебашней](https://images.astronet.ru/pubd/2004/09/28/0001199716/toweraurora_nettfoto.preview.jpg)
28.09.2004
Higher than highest communications tower, higher than highest mountain, higher than highest airplane, lies the realm of the aurora. Auroras rarely reach below 60 kilometers, and can range up to 1000 kilometers. Aurora light results from energetic electrons and protons striking molecules in the Earth's atmosphere.
![Северное сияние над Аляской](https://images.astronet.ru/pubd/2007/04/09/0001221491/aurora1_wikipedia.preview.jpg)
9.04.2007
Higher than the highest mountain, higher than the highest airplane, lies the realm of the aurora. Aurora rarely reach below 60 kilometers, and can range up to 1000 kilometers. Aurora light results from solar shockwave causing energetic electrons and protons to striking molecules in the Earth's atmosphere.
![Лучи нежданного полярного сияния](https://images.astronet.ru/pubd/2005/11/20/0001209588/aurorarays_anderson.preview.jpg)
19.11.2005
This aurora was a bit of a surprise. For starters, on this Friday morning in August 2002, no intense auroral activity was expected at all. Possibly more surprising, however, the aurora appeared to show an usual structure of green rays from some locations.
![Зеленое и черное северные сияния над Норвегией](https://images.astronet.ru/pubd/2006/03/29/0001212634/aurora_andreassen.preview.jpg)
29.03.2006
What causes gaps between aurora curtains? These unusual gaps can make Research using data from four Cluster spacecraft orbiting the Earth has likely found the secret: auroral gaps, sometimes knows as black auroras, are actually anti-auroras. In normal auroras, electrons and/or predominantly negatively charged particles fall toward Earth along surfaces of constant magnetic field.
![Полярное сияние над Эдмонтоном](https://images.astronet.ru/pubd/2003/11/04/0001194605/aurora1_taylor.preview.jpg)
3.11.2003
Northern and southern locales saw many a beautiful aurora over the last week, as particles from several large solar flares impacted the Earth. Many reported unusually red auroras, although colors across the spectrum were also seen. Power grids and orbiting satellites braced for the onslaught, but little lasting damage was reported.
![Дуэль полярных сияний](https://images.astronet.ru/pubd/2005/08/08/0001207540/auroradouble_hoffman.preview.jpg)
7.08.2005
Will it be curtains for one of these auroras? A quick inspection indicates that it is curtains for both, as the designation "curtains" well categorizes the type of aurora pattern pictured. Another (informal) type is the corona.
![Магнитная буря на Mount Megantic](https://images.astronet.ru/pubd/2001/03/15/0001166704/aurora2_gauthier.preview.jpg)
17.08.2000
Plasma from the Sun and debris from a comet both collided with planet Earth last Saturday morning triggering magnetic storms and a meteor shower in a dazzling atmospheric spectacle. The debris stream from comet...
![Полярное сияние из протонов](https://images.astronet.ru/pubd/2003/12/17/0001195598/protonaurora_image_big.preview.jpg)
16.12.2003
What are auroras made out of? Most auroras are caused by the solar wind exciting electrons that are funneled down the Earth's magnetic field. These electrons strike air molecules, liberating other electrons that glow when re-acquired.
![Полярное сияние предваряет шторм](https://images.astronet.ru/pubd/2006/11/09/0001217475/auroracircle2_curtis.preview.jpg)
19.05.2000
Early April brought some of the most intense auroral storms this decade. An aurora on April 6 was reported to be the largest visible on Earth since 1989, and was seen throughout Europe and much of northern North America.
![Полярное сияние на Юпитере крупным планом](https://images.astronet.ru/pubd/2000/12/21/0001163970/jupiteraurora_hst_big.preview.jpg)
18.12.2000
Jupiter has aurorae. Like Earth, the magnetic field of the gas giant funnels charged particles released from the Sun onto the poles. As these particles strike the atmosphere, electrons are temporarily knocked away from existing gas molecules. Electric force attracts these electrons back. As the electrons recombine to remake neutral molecules, auroral light is emitted.
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