SGR A*, the supermassive black hole at the center of the Milky Way. Credit: NASA’s Chandra X-Ray Observatory. richardmitnick March 14, 2016December 13, 2021 sciencespringsEmailMoreTwitterLike Loading... Published by richardmitnick 68 years old, financial administrator, hiker, cyclist, PubRadio enthusiast View all posts by richardmitnick Published March 14, 2016December 13, 2021