Astronomers discovered a quasar, which is the "brightest of its kind" and the "most luminous object ever observed," using the European Southern Observatory's (ESO) Very Large Telescope (VLT), a ...

NuSTAR Observations of a Varying-flux Quasar in the Epoch of Reionization. The Astrophysical Journal Letters , 2025; 979 (1): L6 DOI: 10.3847/2041-8213/ad94ee Cite This Page : ...

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 ...

A quasar is a powerful source of light, created by torrid gas orbiting a gargantuan black hole at the center of a galaxy. The intense radiation from one quasar, named VIK J2348-3054, has probably ...

New research that was published in the journal Nature Astronomy on Monday lays out the discovery of a distant quasar containing what scientists say is the fastest-growing black hole ever recorded.

The James Webb Space Telescope has uncovered something extraordinary: a quasar within the Milky Way! This video unpacks the science behind quasars, the telescope’s incredible capabilities ...

Astronomers have found the oldest-known X-ray quasar in the universe — and its properties align exactly with predictions for a new class of distant objects made by Yale astronomer Priyamvada Natarajan ...

SRGA J2306+1556 is a radio-loud quasar at a redshift of approximately 0.44, discovered in 2022 with Spektr-RG. Previous observations of SRGA J2306+1556 have found that it is heavily obscured and ...

Utilizing DECam's massive field of view, the team conducted the largest on-sky area search ever around an early-Universe quasar in an effort to measure the density of its environment by counting ...

The black hole powering a quasar 13 billion light-years from Earth is half as massive as all the stars around it — a record high ratio for a quasar host galaxy, astronomers report in a paper ...

A Yale-led team of astronomers has 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, ...