Sagittarius A*
BLACK HOLE · the heart of the Milky Way
The supermassive black hole at the center of our galaxy. For decades astronomers watched stars whip around an invisible point at insane speeds, until only one explanation remained. In 2022 the Event Horizon Telescope finally photographed its glowing ring. Sagittarius A* is calm as giant black holes go, a sleeping anchor that the whole Milky Way turns around.
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