将以下的短篇新闻总结为一句话：elongatedsunspot, a massive structure on the surface of the Sun, has produced the largest solar flare in over a decade, increasing the likelihood of geomagnetic storms affecting Earth's communication systems.
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一个位于太阳表面的 elongatedsunspot（延长的太阳黑子）产生了十多年来最大的太阳耀斑，增加了影响地球通信系统的地磁风暴的可能性。
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