Instead, Type Ia supernovas begin with a dead star, one that is ravenously feeding from a stellar companion. These cosmic ghouls are white dwarfs, the kind of stellar corpse the sun will also ...

The Blaze Star has become a white dwarf, which happens when stars have exhausted their nuclear fuels. "It’s basically a dead star," NASA astrophysicist Padi Boyd told ABC News. "It’s not ...

That process makes the corpse rise from the dead, so to speak ... the obliteration of an enormous star before it collapses into a black hole or neutron star. The nova doesn't destroy the white dwarf — ...

Such a cosmic explosion should have destroyed this undead white dwarf star ... the influence of its own gravity (leaving a black hole or neutron star in is wake). Instead, Type Ia supernovas begin ...