Milky Way’s central black hole erupted surprisingly recently

This is Sagittarius A* (pronounced Sagittarius A-star), the supermassive black hole at the center of our Milky Way galaxy. Sagittarius A* is oddly placid these days, but new research says the black hole erupted ferociously within recent centuries. Image via ESO/ EHT Collaboration.

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Milky Way’s central black hole erupted surprisingly recently

New observations of light echoes reflecting through the...