NASAのインスタグラム(nasa) - 2月7日 11時12分

Curly-Q Filament Blast: A solar filament erupted in the shape of a twisted arch over a three-hour period (Feb. 4, 2015) with most of it falling back into the sun. The activity in the lower corona was caught in a wavelength of extreme ultraviolet light. Filaments are elongated clouds of particles suspended above the Sun's surface by magnetic forces. They are notoriously unstable.
Credit: Solar Dynamics Observatory, NASA

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