Sonnensturm - Katastrophale Folgen für die Menschheit?29.06.2010 um 09:37
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Space Weather Turns into an International Problem
"The problem is solar storms?figuring out how to predict them and stay safe from their effects," says ILWS Chairperson Lika Guhathakurta of NASA headquarters. "We need to make progress on this before the next solar maximum arrives around 2013."
If forecasters are correct, the solar cycle will peak during the years around 2013. And while it probably won't be the biggest peak on record, human society has never been more vulnerable. The basics of daily life?from communications to weather forecasting to financial services?depend on satellites and high-tech electronics. A 2008 report by the National Academy of Sciences warned that a century-class solar storm could cause billions in economic damage.
A Puzzling Collapse of Earth's Upper Atmosphere
In 2008 and 2009, the density of the thermosphere was 28% lower than expectations set by previous solar minima.
Könnte also die Sonnenaktivität, die "Umpolung" beschleunigen?
Das Herz der Erde
also weiter abwarten und Tee trinken.
Sunspot 1087 has a "beta-gamma" magnetic field that harbors energy for M-class solar flares.
The size of the heliosphere is determined by a balance of forces: Solar wind inflates the bubble from the inside while the Local Fluff compresses it from the outside.
Additional compression could allow more cosmic rays to reach the inner solar system, possibly affecting terrestrial climate and the ability of astronauts to travel safely through space. On the other hand, astronauts wouldn't have to travel so far because interstellar space would be closer than ever.
These events would play out on time scales of tens to hundreds of thousands of years, which is how long it takes for the solar system to move from one cloud to the next.