Back to Article List From the December 2007 issue The black-hole hostages of Sagittarius A Did a medium-sized black hole drag a cluster of hot young stars to the Milky Way's core? By Daniel Pendick | Published: December 19, 2007 Hot young stars zip around the galactic center at amazing speeds — but how did they get there?
Cosmology, Exotic Objects, Science Ask Astro: Why do colliding supermassive black holes give off low-frequency gravitational waves?
