Our Sun isn't active enough to produce flares large enough to
dangerously irradiate the Earth. If it were, given hundreds of millions
of years of land-based life, we almost certainly wouldn't be here.
Keep in mind that those CMEs that look so impressive in the videos
produce a particle density at the Earth that represents a harder vacuum
than can be achieved in a lab, and what's left is effectively blocked by
our magnetic field and atmosphere.
Other stars are more active, and ours may become so billions of years
from now. But at the moment, we're safe (assuming we can recover from
having our power grids or satellites knocked out... which are very
possible consequences of flares that we know the Sun can produce).
Chris
*******************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
On 3/14/2012 10:58 AM, Steve Dunklee wrote:
What level of flare would cause death on earth from radiation and is it
possible? like just the flare going in the wrong direction.
cheers
Steve
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