Solar Flare January 12, 2015
The sun emitted a mid-level solar flare, peaking at 11:24 EST on Jan. 12, 2015. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground. However, when intense enough, they can disturb the atmosphere in the layer where GPS and communications signals travel.
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Photo credit: © Photo Researchers / Alamy / Afripics
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