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 ...

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 ...

Astronomers have spotted the brightest known object in the universe, and it’s a quasar powered by the fastest-growing black hole on record, according to a new study. Initially classified as a star, ...

In a breakthrough discovery, scientists have found the most distant quasar yet known — and it's home to a seriously supermassive black hole. Astronomers led by researchers at the University of Arizona ...

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.

Early research (1932-1963): Initial radio wave detection and identification of unusual galactic nuclei laid the groundwork for quasar discovery. Precise radio source location and spectral analysis of ...

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 ...