A new image released by NASA shows what could be a captivating — and terrifying — event roughly 650 light-years away: a dying white dwarf that may have taken a planet out with it. The observation was ...

This planetary nebula is the remains of a star similar to the sun ... debris pulled onto the white dwarf, as the death knell ...

Since the 1980s, a strange X-ray emission has puzzled astronomers. At the heart of the Helix Nebula, a dying star may have destroyed a neighboring planet, revealing a rare and spectacular phenomenon.