Back to Article List From the September 2007 issue Do black holes ever disappear? Larisa Balladares, Queens, New York By Astronomy Staff | Published: September 1, 2007 Black holes consume everything that gets too close, so it may come as a surprise that they emit radiation.
Cosmology, Exotic Objects, Science Ask Astro: Why do colliding supermassive black holes give off low-frequency gravitational waves?