September Starts with Flare(s)

The Solar Dynamics Observatory satellite keeps continuous watch on the Sun. It’s spotted several flares so far this month. The X9.3 flare was the strongest flare yet during the current solar cycle, the roughly 11-year-cycle during which the Sun’s activity waxes and wanes. The current cycle began in December, 2008, and is now decreasing in intensity and heading toward a solar minimum.

Video Credit: NASA

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