Quasars, or extremely active black holes are the brightest objects in the universe. But aren't black holes meant to be ...

"We would like to understand the difference between these systems, which holds the clue to understand just how many cosmic ...

These jets become elusive the farther back in time astronomers try to look because of the so-called cosmic microwave background. The ancient radiation, the earliest fossil of light from 380,000 years ...

"Interestingly, the quasar powering this massive radio jet does not have an extreme black hole mass compared to other quasars." ...

Ancient quasars seen by the James Webb Space Telescope technically shouldn’t exist, but one rare type of dark matter could make sense of that. Ultra-self-interacting dark matter clumped into ...

They found a type of ultra-powerful galaxy that gobbles up everything around it. Its energy is so intense that, if it were ...

Abstract: Quasars in the Age of Time-Domain Astronomy: Black hole feeding, visible as quasars, is a critical ingredient in many fields from galaxy evolution to multi-messenger gravitational wave ...

Allan Sandage and Thomas Matthews find sources of intense radio energy, calling them Quasi Stellar Radio Sources. Four years later, Maarten Schmidt would discover that these sources lie at the ...

The gas and dust falling into these black holes liberates an enormous amount of energy as a result of friction, forming luminous galactic cores, called quasars, that expel jets of energetic matter.