Collision of Two White Dwarf Stars Offers Clues About Rare Cosmic Events – USA DAILY NEWS

Collision of Two White Dwarf Stars Offers Clues About Rare Cosmic Events

The collision of two dying stars, known as white dwarfs, around 1.3 billion years ago has produced a star heavier than the sun with a rare carbon-rich atmosphere, a development that—if confirmed—could help astronomers better understand the cosmic events that made life on earth possible.

The massive star is one of a handful of merged white dwarfs to be identified so far, and the first to be discovered by the composition of gases in its atmosphere, according to a study published Monday in the journal Nature Astronomy.