How Bizarre Astronomy

Fast-moving star duo is heading out of the Milky Way

Researchers are baffled as to what sent them soaring

illustration of binary star PB 3877

ESCAPE ARTIST  Binary star PB 3877 (illustrated) is hurtling through the outer reaches of the galaxy and astronomers aren’t sure how it got out there.

Thorsten Brand

By Christopher Crockett

- More than 2 years ago

Something catapulted a pair of stars from the outer rim of our galaxy, but astronomers aren’t sure what.