For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

"Theories involving substantial formation of stars prior to or together with the black hole formation and growth are very unlikely." ...

NASA's Chandra X-ray Observatory has captured a striking image of a distant quasar from the "cosmic noon," including a giant ...

Astronomers at the University of Hawaii uncovered black hole events so packed with energy, they were the biggest explosions ...