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Milky Way

Witnessing Light Echoes from a Neutron Star

X-ray echoes from binary star system Circinus X-1 are helping astronomers measure its distance from Earth.

Stellar Science

Taming the "Zoo" of Neutron Stars

These stellar corpses have many faces, from pulsars to magnetars. New models provide evidence for unifying these disparate objects under one theory.

Milky Way

Neutron Star Gobbles Gas, Burps X-rays

Astronomers have observed a neutron star flaring to 10,000 times its original brightness.

Stellar Science

A Neutron Star's Hard Core

Astronomers have found some pulsars that appear unusually massive, calling into question our understanding of neutron-star interiors.

Milky Way

Measuring Neutron Stars Exactly

Astronomers can measure a neutron star's diameter by effects of gas skimming around its surface at 40% of light speed.