Star formation has ceased within at least 16 million light-years of the quasar. A similar phenomenon may have fried the Milky Way when it was young.

Scientists observe a cosmic joust where quasar radiation disrupts star formation during a mega-merger, reshaping galaxies and their evolution. The post Cosmic Joust: Quasar’s Radiation Halts ...

A long time ago in a galaxy far, far away... Astronomers have observed a rare and spectacular phenomenon dating back over 11 billion years: a quasar, the hyperactive core of a distant galaxy, ...

The black hole’s mass is over half that of all the stars in the surrounding galaxy, a record for any galaxy hosting a quasar.

Astronomers witness first evidence of quasar halting star birth The quasar’s radiation is stripping away gas in its companion galaxy, leaving behind clumps too compact to form new stars.

This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.

Astronomers saw a space collision that not only triggered a quasar to light up but showed it halting star formation in another galaxy.

Astronomers have used the unique capabilities of NASA's Hubble Space Telescope to peer closer than ever into the throat of an energetic monster black hole powering a quasar. A quasar is a galactic ...

A musty neighborhood bar, complete with a sticky floor, the fragrance of stale beer, a decrepit bartender named Art who will pick up your fourth brewski, and an ancient 16-inch ...

Using combined observations from ground-based telescopes over nearly four years, the researchers saw the distant galactic neighbors charging toward each other at more than 1.1 million miles per hour.

But the galaxy affected by the quasar's radiation was left with fewer regions that could serve as such stellar nurseries, undermining its star formation rate.

Each blast of the quasar’s ultraviolet waves is about a thousand times stronger than the radiation of our Milky Way, causing hydrogen molecules from some of the “victim” galaxy’s star ...