by Staff Writers
Paris, France (ESA) Jul 25, 2012
A stunning image showing Aurora Australis - the Southern Lights - glowing over Concordia station in the Antarctic, one of the remotest places on Earth, on 18 July 2012. It was taken by ESA-sponsored scientist Alexander Kumar and his colleague Erick Bondoux from about 1 km from the station, located in the Antarctic at 75 degrees S latitude.
The French-Italian Concordia station's programme of research includes glaciology, human biology and the atmosphere. ESA uses the base to prepare for future long-duration missions beyond Earth.
During the winter, Concordia is under almost total darkness, with an average temperature of -51 degrees C and a record low of -85 degrees C. It is an ideal place to study the effects on small, multicultural teams isolated for long periods in an extreme, hostile environment.
Auroras occur frequently over both the North and South polar regions, but are often difficult to see from populated areas. During periods of increased solar activity, the lights sometimes extend to populated latitudes.
This year has seen unusually high solar activity; most recently, on 14 July, Northern Lights could be seen as far south as Duluth, Minnesota, USA.
Solar activity remains unusually high
The effects at Earth are expected to be minor, but could include some effects on satellites in orbit or interference in high-frequency radio communications.
And still more...
However, a rapid increase in proton particles has been detected, and these have some effects on satellites.
Tracking space weather
"Such events are capable of affecting space-based telecommunications, broadcasting, meteorological observations and navigation through to power distribution and terrestrial communications, especially at northern latitudes."
Solar Science News at SpaceDaily
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Heliophysics Nugget: Riding the Plasma Wave
Greenbelt MD (SPX) Jul 20, 2012
Throughout the universe more than 99 percent of matter looks nothing like what's on Earth. Instead of materials we can touch and see, instead of motions we intuitively expect like a ball rolling down a hill, or a cup that sits still on a table, most of the universe is governed by rules that react more obviously to such things as magnetic force or electrical charge. It would be as if your cup was ... read more
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