A recently detected flash of energy appears to have emanated from the wreckage of colliding galaxies, according to an international team of astronomers led by Penn State scientists. The burst, known ...

Billions of light years away in a remote part of the universe, two neutron stars—the ultradense remnants of dead stars—collided. The catastrophic cosmic event sent light and particles, including a ...

The first time that University of Oxford astronomer Lyla Jung saw the cosmic configuration on her monitor, she almost didn’t believe it was real. But it was—and Jung and her colleagues went on to ...

Astronomers have caught a supermassive black hole sprinting away from its home galaxy at about two million miles per hour. Behind it, a 200,000 light-year trail of young stars marks a galaxy suddenly ...