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2012: Killer Solar Flares Are a Physical Impossibility
Given a legitimate need to protect Earth from the most intense forms of
space weather – great bursts of electromagnetic energy and particles
that can sometimes stream from the sun – some people worry that a
gigantic "killer solar flare" could hurl enough energy to destroy Earth.
Citing the accurate fact that solar activity is currently ramping up in
its standard 11-year cycle, there are those who believe that 2012 could
be coincident with such a flare.
But this same solar cycle has occurred over millennia. Anyone over the
age of 11 has already lived through such a solar maximum with no harm.
In addition, the next solar maximum is predicted to occur in late 2013
or early 2014, not 2012.
Most importantly, however, even the biggest solar flares are not powerful enough to physically destroy Earth.
Source: http://www.nasa.gov/topics/earth/features/2012-superFlares.html |
| Category: Astronomia | Added by: CF7 (2012-03-19)
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