A very rare aurora appeared over Norway: the cause of the phenomenon remains a mystery (photo)
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An incredibly rare aurora blue of pink and orange has appeared in the sky over Norway for the second time in 2 months.
A few days ago, in the skies over Norway, a group of aurora watchers witnessed a truly unusual phenomenon. They saw an aurora in the sky, which had unusual colors for such phenomena: pink and orange. If a pink aurora has already appeared over Norway last month, then orange has never been seen before, writes Space.
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In November of this year, as Focus already wrote, “auroral hunter” Markus Varik and a group of tourists he accompanied witnessed the appearance of an unusual pink aurora. Then scientists explained that the strongest ejection of plasma from the Sun punched a hole in the Earth's magnetic field, due to which solar particles penetrated very deep into the atmosphere. This was the reason for the appearance of an unusual pink aurora.
But this time, Varik, who has been taking tourists to see these atmospheric phenomena for more than 10 years, and his group saw not only pink, but also orange auroras in the sky. According to Varik, he had never seen such shades before.
“I don't know what had to happen for the aurora to turn orange, I definitely haven't seen it yet. Maybe there was a hole in the Earth's magnetic field again, or maybe it's something else, I don't I know. In any case, we watched this phenomenon for several minutes,” Varik says.
Space weather experts still don't know what happened that day in the sky near the Norwegian city of Tromso, which is located 350 km above the Arctic Circle.
According to Varik, the aurora was mostly pink and green, but occasionally shimmered in orange, and despite the short duration of the event, he was able to capture some amazing shots. But the most interesting thing is that according to the forecasts of scientists, the chances of seeing a pink aurora on this day were negligible.
Auroras are the result of the interaction of solar particles that enter the atmosphere with the magnetic field of our planet. The brightest aurorae appear when the Earth is reached by huge streams of solar plasma as a result of coronal mass ejections. But scientists did not record anything like this on the Sun that day.
According to scientists, the pink color of the glow is due to the interaction of solar particles with nitrogen in the Earth's atmosphere. But this only happens when the solar wind penetrates deep into the atmosphere. But this also did not happen, so the reason for the unusual aurora remains a mystery.
As Focus already wrote, a series of eight solar flares of high power occurred on the Sun and part of this radiation has already reached the Earth. More outbreaks are expected in the near future, which may be even stronger. But during future events, scientists expect huge plasma streams to be ejected, which could lead to problems on Earth.