NASAのインスタグラム(nasa) - 9月12日 02時44分

The sun emitted a significant solar flare, peaking at 1:48 p.m. EDT on Sept. 10. 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.

This image was captured by NASA's Solar Dynamics Observatory and shows light in the 131 Angstrom wavelength, which is typically colorized in teal.

Image Credit: NASA/SDO

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