For decades, physicists have searched for one of the faintest signals in the cosmos: a background of neutrinos released by ...

Earth is quietly collecting radioactive debris from an ancient stellar explosion as our Solar System drifts through a giant cloud of gas and dust between the stars. Scientists analyzing Antarctic ice ...

Astronomers using NASA’s Chandra X-ray Observatory to observe galaxy Messier 83 (M83) spotted the unexpected explosive ...

Astronomers have witnessed the birth of a rapidly spinning, highly magnetized neutron star or "magnetar" for the first time. The observation of this event, triggered by the death of a massive star, ...

When most people think of a supernova, they're thinking of a Type II core-collapse supernova. These are massive stars that have reached the end of their time on the main sequence. They've used up ...