Quasars are awe-inspiring – among the brightest objects in the Universe, behind gamma-ray bursts and supernovae. Unlike other ...

The black hole in this record-breaking quasar is growing in mass by the equivalent of one sun per day, making it the fastest-growing black hole to date. The black holes powering quasars collect ...

The Hubble Space Telescope has stared deeper into a quasar than ever before, discovering "weird" features in its vicinity. Quasars are the superbright centers of active galaxies, and they're ...

In simple terms, the quasar is very, very bright. Hubble’s Space Telescope Imaging Spectrograph (STIS) can work as a coronograph, and is used to block light from central sources. Astronomers ...

NASA's Hubble Space Telescope has unveiled the closest-ever look at a monster black hole devouring its cosmic surroundings. This supermassive black hole, at the heart of a quasar known as 3C 273 ...

The term "quasar" was first used in 1964 by astrophysicist Hong-Yee Chiu to describe some of the brightest objects in the universe, emitting more energy than anything else. When they were first ...

Astronomers used a coronograph, an instrument on the Hubble Space Telescope, to blot out the blindingly bright light of the quasar so they could study its surroundings. Credit: NASA / ESA Black ...

Quasar is short for "quasi-stellar radio source" — bright, star-like objects that emit radio waves and are powered by actively feeding supermassive black holes. The first quasars were identified ...

Related: What is a quasar? With the imaging spectrograph blocking out the bright light from the region at the heart of the quasar, Hubble was able to see the structure around the black hole like ...

unidentified stuff in the most detailed photos ever taken of the immediate space surrounding a quasar. Quasars, a shortening of the term "quasi-stellar objects," are blindingly bright galaxy cores ...

Quasars, a shortening of the term "quasi-stellar objects," are blindingly bright galaxy cores in the early universe. Though these extremely distant objects look like stars in the sky, they're the ...

Related: What is a quasar? With the imaging spectrograph blocking out the bright light from the region at the heart of the quasar, Hubble was able to see the structure around the black hole like never ...