The sun emitted a mid-level solar flare, beginning at 11:57 p.m. EST on
Feb. 3, 2014, and peaking at midnight EST. NASA released images of the
flare as captured by NASA's Solar Dynamics Observatory.
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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