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Alien visitor from afar

Nearby star may have an extragalactic lineage

To see video of the orbits of these subdwarf stars, click here.

PASADENA, Calif. — Even the most unassuming neighbor can hide a giant secret. New calculations of the orbit of a dim, extremely low-mass star just 300 light-years from the solar system suggest the body may be a runaway from another galaxy.

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