Researchers from the University of Arizona have recently discovered the most distant quasar to date. This finding allows researchers to answer how black holes can possibly grow. Quasars contain ...

A newly identified quasar shows sustained growth beyond the Eddington limit, prompting new examination of accretion physics, radiation trapping and jet activity in early supermassive black holes.

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 ...

Scientists can’t travel deep space the way Columbus sailed and charted the New World or Lewis and Clark mapped the West. But, researchers at Case Western Reserve University and two partnering ...

A research team has investigated quasar variability by tracking optical to mid-infrared (MIR) wavelengths of variability ...

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Arp worked out his novel theory after compiling an atlas of the “peculiar galaxies” that appear to have been distorted by cataclysmic explosions. Many of these distorted galaxies, he noted, were ...

Plenty of groups have been theorizing about primordial black holes (PBHs) recently. That is in part because of their candidacy as a potential source of dark matter. But, if they existed, they also had ...

Gathering observations of a black-hole-powered quasar when the universe was less than a billion years old was an "emotional rollercoaster" for researchers. When you purchase through links on our site, ...