Scientists are using pulsars to detect the gravitational wave 'hum' created from supermassive black hole mergers. Credit: National Science Foundation (NSF) ...

Imagine waking up one morning to the news: a black hole is drifting close to our solar system. It sounds like the plot of a .

NASA’s James Webb Telescope captures the "Cosmic Owl," a rare galactic formation resembling an owl’s face. See stunning images.

ENTs occur when stars that are at least three times as massive as the Sun pass so close to a supermassive black hole that its colossal gravity shreds them to pieces. The resulting string of matter ...