When this shock reaches the surface, it releases an enormous burst of energy. The star brightens dramatically, becoming visible as a supernova. For a short period, astronomers can study the initial ...

NEW YORK (AP) — Scientists for the first time have spotted the insides of a dying star as it exploded, offering a rare peek into stellar evolution. Stars can live for millions to trillions of years ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. NEW YORK (AP) — Scientists for the first time have spotted the insides of a dying star as it ...

This illustration provided by W.M. Keck Observatory depicts the insides of an exploding star. (Adam Makarenko/W. M. Keck Observatory via AP) This illustration provided by W.M. Keck Observatory depicts ...