White dwarf pair will trigger a supernova — in 700 million years
![illustration of two white dwarfs nearing collision](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/02/ticker_eso1505a.jpg?fit=860%2C460&ssl=1)
Two white dwarfs, illustrated, will eventually spiral together and explode as a type 1a supernova.
ESO, L. Calçada
Two white dwarfs, illustrated, will eventually spiral together and explode as a type 1a supernova.
ESO, L. Calçada