NASA Given a legitimate require to protect Earth from the majority intense forms of space weather — immense bursts of electromagnetic energy and particles that can at times stream from the sun — some inhabitants be anxious that a gigantic "killer solar flare" could hurl sufficient energy to destroy Earth. Citing the correct fact that solar activity is at present ramping up in its standard 11-year cycle, there are those who consider that 2012 could be coincident with such a flare.
Other than this same solar cycle has happened over millennia. Anybody over the age of 11 has already lived by such a solar maximum with no harm. Additionally, the next solar maximum is forecasted to occur in late 2013 or early 2014, not 2012.
Most prominently, though, there simply isn't sufficient energy in the sun to send a killer fireball 93 million miles to destroy Earth.
This is not to say that space weather can't affect our planet. The explosive heat of a solar flare can't make it all the way to our globe, but electromagnetic radiation and energetic particles certainly can. Solar flares can temporarily alter the upper atmosphere creating disruptions with signal transmission from, say, a GPS satellite to Earth causing it to be off by many yards.
Young from NASA Goddard Space Flight Center sorts out truth from fiction.
One more phenomenon produced by the sun could be still more disruptive. Recognized as a coronal mass ejection (CME), these solar explosions propel ruptures of particles and electromagnetic fluctuations into Earth's atmosphere. Those variations could induce electric fluctuations at ground level that could feast transformers in power grids. The CME's particles can too collide with crucial electronics onboard a satellite and disrupt its systems.
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