APM 08279-5255 is a massive black hole (quasar) that contains about 140 trillion times the amount in all of Earth’s oceans ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered what may be the brightest object in the universe, a quasar with a black hole at its heart growing so fast that it swallows the equivalent of a ...

Confirming a non-universal X-ray-to-ultraviolet relation with cosmic time is quite surprising and challenges our ...

One of the farthest known quasars seems to have shut down the creation of new stars in all the galaxies within its vicinity. A quasar is a powerful source of light, created by torrid gas orbiting a ...

New data from NASA’s Hubble Space Telescope details what may be the most powerful phenomena in the universe: the “quasar tsunami,” a cosmic storm of such terrifying proportions that it can tear apart ...

Scientists have discovered the energetic core of a distant galaxy that shatters the record for the brightest object in the early universe, blazing with the light equivalent to 600 trillion suns.

A giant nebula in the early universe hits the jackpot when it comes to rare, bright objects known as quasars, boasting four within surprisingly close proximity to one another. The first known quasar ...

A quasar fundamentally represents a supermassive black hole that is actively accreting surrounding matter, generating an exceptionally luminous disk whose light can entirely outshine its host galaxy.

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 ...

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 ...