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Gigantica explozie solară, denumită proeminenţă solară, a fost urmată de o altă erupţie, la numai câteva ore distanţă. Prima proeminenţă a fost atât de mare, încât a ieşit din zona de observaţie a sondei SDO (Solar Dynamics Observatory) de la NASA.
Erupţia de vineri nu a fost îndreptată către Pământ, aşa că nu a avut efecte asupra planetei noastre.
Când sunt îndreptate către Terra, exploziile solare puternice pot reprezenta o ameninţare pentru sateliţii şi astronauţii de pe orbita planetei şi pot interfera cu sistemele de comunicaţie, navigare şi energie de la sol.
Soarele se află la mijlocul fazei sale active, din ciclul său de 11 ani. Ciclul actual este denumit Ciclul 24 şi va ajunge la maxim în 2013.
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