Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can explode not once, but twice before fading forever. Using the European Southern ...

In a stunning first-ever image, astronomers have seen a star that died by exploding twice. They pointed the European Southern Observatory's (ESO) Very Large Telescope (VLT) at supernova SNR 0509-67.5, ...