In other cases, another member of the system will go on to form a second white dwarf. If gravitational instabilities bring ...

Based on the new model, the first of these white dwarf explosions isn’t due for at least 10 1100 years. That’s a 1 followed by 1,100 zeros—a number so big that we don’t have a name for it ...

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