Through the years since it was first launched, the Hubble Space Telescope has captured stunning photographs of the Cassiopeia ...

NASA's Fermi Gamma-ray spacecraft has observed a super-bright, supercharged supernova explosion powered up by the creation of ...

Earth is quietly collecting radioactive debris from an ancient stellar explosion as our Solar System drifts through a giant ...

Astronomers have for the first time seen the birth of a magnetar—a highly magnetized, spinning neutron star—and confirmed that it's the power source behind some of the brightest exploding stars in the ...

In recent years, whenever astronomers have gazed into the night sky, they’ve noticed something peculiar: Some of its massive stars—the true titans of the cosmos—appear to be missing. The largest of ...

WASHINGTON — A supernova — the explosion marking the end of a massive star's life — is one of the brightest cosmic events, usually about a billion times more luminous than the sun. But some — a small ...

It's never too late to solve a cold case. A new paper from Syracuse University researchers proposes an explanation for both a mysterious stellar object discovered in the year 2013 and an astronomical ...

Neutron stars are the densely compact cores remaining as one possible result of a supernova. These star remnants are ...