G. Miniutti

The Ansky black hole in a distant galaxy has changed the rhythm of its X-ray flares: they are now half as frequent, but four times as powerful and longer lasting. Scientists link this to an object that might be making its final loops before falling into the hole, disturbing the disk of superheated g

Astronomers measured the polarization of light from GSN 069—the direction in which its waves oscillate. The farther from the center, the more ordered the light became. This pointed to an extinguished active nucleus: the black hole once blazed brightly, and distant clouds still reflect its former bri