A bright flare has been observed emanating from Sagittarius A*, the black hole at the center of the Milky Way, and scientists are trying to figure out what caused it. "The black hole was so bright I at first mistook it for the star S0-2, because I had never seen Sgr A* that bright," said Tuan Do, author of a study set for publication in The Astrophysical Journal Letters.
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