NASAのインスタグラム(nasa) - 1月14日 01時04分

NASA's Solar Dynamics Observatory see first notable solar flare of 2015:

The sun emitted a mid-level solar flare, peaking at 11:24 p.m. 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.

Pictured is an M-class solar flare erupting from the right side of the sun in this image that blends two wavelengths of light -- 171 and 304 angstroms -- as captured by NASA's Solar Dynamics Observatory.

Image Credit: NASA/SDO

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