Astronomers Measure the Long Reach of a Quasar
Supermassive black hole winds can travel up to 300,000 light-years from their host galaxies, according to a recent study of quasar H1821_643 by astronomers from Tohoku University, Tokyo Metropolitan University, and Kanazawa University. While Sagittarius A*, the supermassive black hole at the center of the Milky Way, poses no immediate threat to Earth, distant quasars … Read more