An ancient 3-star system gave this 'blue lurker' star a turbo boost, scientists find

A massive white dwarf and a sun-like "blue lurker" star tell a remarkable story of what was once a triple-star system in the M67 cluster.

https://www.space.com/space-exploration/hubble-space-telescope/an-ancient-3-star-system-gave-this-blue-lurker-star-a-turbo-boost-scientists-find