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Supermassive Black Hole A*
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Updated: 2019-08-12

Supermassive Black Hole A*, or simply A* (pronounced "A star"), tells stories of a human civilization at the center of the Milky Way galaxy: an area of space dominated by a gigantic black hole, where energy is abundant and life is cheap.

There really *is* a supermassive black hole at the center of our galaxy: Sagittarius A*, so named by scientific observers because it appears as the brightest part of a high energy radio source, denominated "A," located in the constellation Sagittarius when viewed from Earth. Sgr A*, the center of the Milky Way galaxy, about 26,000 light years from Earth, is roughly 4,000,000 times as massive as the Sun.