The shattered star at the center was once a white dwarf, a stellar ember no larger than Earth, yet almost as heavy as the Sun ...

Astronomers studying the remnant SNR 0509-67.5 have finally caught a white dwarf in the act of a rare “double-detonation” supernova, where an initial helium blast on the star’s surface triggers a ...

This is the first evidence for a white dwarf exploding not once, but twice. The discovery could shed new light on how some ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.