Scientists have long believed that the formation of a quasar in a galaxy would spell the end of star formation there. A new analysis suggests that may not be the case. Share on Facebook (opens in a ...

Quasars, the luminous beacons at the centers of distant galaxies, have puzzled astronomers for decades with their dramatic brightness variations. Recent observations suggest that these celestial ...

Twinkling like cosmic lighthouses on a shore 13 billion light-years from Earth, quasars are some of the oldest, brightest relics of the early universe that astronomers can detect today. Short for ...

Supermassive black holes appear to be present at the center of every galaxy, going back to some of the earliest galaxies in the Universe. And we have no idea how they got there. It shouldn’t be ...

The beginning of the end of our galaxy is just a few billion years away. That’s when the glittering disk of the Milky Way is projected to smash into its nearest neighbor, a spiral galaxy called ...

Observations confirm astronomers' expectation that early-Universe quasars formed in regions of space densely populated with companion galaxies. DECam's exceptionally wide field of view and special ...

A Hubble Space Telescope image of the core of quasar 3C 273. A coronagraph on Hubble blocks out the glare coming from the supermassive black hole at the heart of the quasar. This allows astronomers to ...

Peering into the infancy of the universe, astronomers have recently discovered the largest and brightest quasar powered by a central black hole with a mass of 12 billion suns. To put this into ...

The first-ever sighting of starlight from a galaxy hosting one of the most distant quasars known has revealed an astronomical oddity. Quasars — blazingly bright galactic cores — owe their brilliance ...