The largest-ever three-dimensional map of the cosmos, plotting out some 15 million celestial objects, could help reveal the ...

Astronomers have imaged a feeding black hole-powered quasar at the very edge of the universe, so far away that it was seen as it appeared less than 1 billion years after the Big Bang. The quasar ...

Scientists have detected radio signals from hot gas surrounding a supermassive black hole that existed 12.9 billion years ago ...

The 3D cosmic map building DESI has provided more clues that dark energy is weakening over time, suggesting our best model of ...

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 ...