Astronomers Propose New Explanation for Finger-Like Features Seen in Some Solar Flares

Dr. Chengcai Shen from the Harvard & Smithsonian Center for Astrophysics and colleagues have analyzed images of the so-called supra-arcade downflows captured by the Atmospheric Imaging Assembly (AIA) onboard NASA’s Solar Dynamics Observatory. In January 1999, solar astronomers observed mysterious motions within a solar flare. Unlike typical flares that showed bright energy erupting outwards from…

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