Astronomers have discovered the earliest known flickering quasar, whose light has traveled more than 13 billion years to reach us. It can help reveal how some of the Universe's biggest black holes ...

Quasars are some of the brightest objects in the universe. A quasar is powered by large amounts of matter falling into the supermassive black hole at the center of a galaxy. Collisions and mergers ...

A new Northwestern University-led study is changing the way astrophysicists understand the eating habits of supermassive black holes. While previous researchers have hypothesized that black holes eat ...

The galactic cores, containing huge black holes, could help explain how the universe developed into the complex cosmos it is today. Reading time 2 minutes A team of astronomers has spotted the most ...

Astronomers have detected an intensely brightening and dimming quasar that may help explain how some objects in the early universe grew at a highly accelerated rate. The discovery is the most distant ...

Quasars are among the brightest, most energetic objects in the universe, powered by supermassive black holes devouring matter at the centers of galaxies. Their extreme luminosity makes them visible ...

The hearts of some galaxies glow so brightly that they are given a special name: Quasars. Powered by supermassive black holes at the center of these galaxies, these regions give off tremendous amounts ...

Artist’s concept of quasar P172+18. Astronomers at University of Sheffield say that galaxy collisions power quasars. Image via ESO/ M Kornmesser. Quasars are the most powerful objects in the universe.

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of a quasar, powered by an accretion disk of gas and dust swirling into a central supermassive black hole.