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Possible closest neutron star to Earth found

Astronomers have identified an object that is likely one of the closest neutron stars to Earth -- and possibly the closest. The object, located in the constellation Ursa Minor, is nicknamed Calvera, after the villain in the movie "The Magnificent Seven." If confirmed, it would be only the eighth known "isolated neutron star" -- a neutron star that does not have an associated supernova remnant, binary companion or radio pulsations.

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