HomeAstronomySolar flares: What are they and how do they affect Earth?

Solar flares: What are they and how do they affect Earth?

Solar flares are large explosions from the surface of the sun that emit intense bursts of electromagnetic radiation. The intensity of the explosion determines what classification the flare belongs to. The most powerful are X-class flares, followed by M-, C- and B-class; A-class flares are the smallest. 

These flares can be visible as bright flashes in a particular region of the sun and can last several minutes, according to the University Corporation for Atmospheric Research (UCAR). 

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