PICK OF THE WEEK
 
Pick of The Week
 
 

Halo CMEs? We Got 'Em (November 30, 2012)


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The Sun spewed out about a dozen coronal mass ejections (CMEs) over a six-day period (Nov. 18-24, 2012), and several of them were "halo" CMEs in which the leading edge of the particle clouds seem to expand in a roughly circular shape around the Sun, not because it surrounds the Sun, but because it is moving directly toward or away from the observer. The frequency of these storms is typical of solar activity as we move closer to its period of solar maximum.

 

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