Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have discovered a close pair of quasars, which is ...

By analyzing the data from various space observatories, Chinese astronomers have inspected a nearby quasar designated SDSS ...

The brightest quasar ever seen in the young cosmos is powered by a black hole that appears to be breaking the universe’s own growth rules. It is devouring matter at a rate that standard physics says ...

Observations confirm astronomers' expectation that early-Universe quasars formed in regions of space densely populated with companion galaxies. DECam's exceptionally wide field of view and special ...

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 ...

A Hubble Space Telescope image of the core of quasar 3C 273. A coronagraph on Hubble blocks out the glare coming from the supermassive black hole at the heart of the quasar. This allows astronomers to ...