For the first time, astronomers have spotted a star that exploded not once, but twice. A new image of a roughly 300-year-old supernova provides visual evidence that some dying stars undergo a double ...

Astronomers have made a historic breakthrough: for the first time, a black hole has been observed consuming a neutron star,an event so powerful it sent ripples through the very fabric of space-time.

"Transitional millisecond pulsars are cosmic laboratories that help us understand how neutron stars evolve in binary systems." ...

The only place that's likely to happen is at the very center of our galaxy. And, for a while, there was an excess of ...