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Gas Far Outside of Our Galaxy Illuminated by Enormous Burst of Energy Unleashed by Milky Way’s Black Hole

3 Jun 2020, 12:45 UTC
Gas Far Outside of Our Galaxy Illuminated by Enormous Burst of Energy Unleashed by Milky Way’s Black Hole NASA, ESA and L. Hustak (STScI)

About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy. Our primitive ancestors, already afoot on the African plains, likely would have witnessed this flare as a ghostly glow high overhead in the constellation Sagittarius. It might have persisted for 1 million years.

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