A 'dead star' may be a leftover of stellar explosion: Study

Astronomers have identified a white dwarf, fuel-exhausted star, in the Milky Way that may be the leftover of a huge explosion millions of years ago. The discovery suggests a super-dense white dwarf devoured material from its giant star companion until it partially exploded as a supernova, forming the unusual low-mass white dwarf with high velocity as a leftover, researchers said.