NASAのインスタグラム(nasa) - 5月1日 22時41分

Views of April 17 Solar Flare! An active region on the sun’s right side released a mid-level solar flare, captured here by our Solar Dynamics Observatory. This solar flare caused moderate radio blackouts, according to NOAA’s Space Weather Prediction Center. Scientists study active regions – which are areas of intense magnetism – to better understand why they sometimes erupt with such flares. This video was captured in several wavelengths of extreme ultraviolet light, a type of light that is typically invisible to our eyes, but is color-coded in SDO images for easy viewing.

Credit: NASA/SDO

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