Heart-Shaped Sunspot Fires Off Powerful Flare (Video)
A huge, heart-shaped sunspot shot off a strong solar flare Sunday evening (April 17), temporarily disrupting radio communications here on Earth. The flare erupted at 8:29 p.m. EDT Sunday (0029 GMT on Monday) from a giant sunspot known as active region (AR) 2529, which is currently big enough to fit nearly five Earths inside it. NASA's Solar Dynamics Observatory spacecraft captured amazing video of the solar flare as it happened. The eruption caused moderate radio blackouts in some places, which have since cleared up, according to officials with the National Oceanic and Atmospheric Administration's Space Weather Prediction Center. Sunday's flare clocked in at M6.7 on the three-tiered classification ...
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