Neutron stars are ultra-dense star remnants made up primarily of nucleons (i.e., protons and neutrons). Over the course of ...

Astronomers have recorded a unique awakening of the neutron star P13. Over the course of a decade, its X-ray brightness has ...

A distant neutron star unexpectedly reawakened, unleashing a powerful X-ray surge that may reveal how the universe’s most extreme stars feed.

A research team has investigated long-term X-ray variability in the neutron star NGC 7793 P13, an object thought to be driven ...

Astronomers tracked a decade of dramatic changes in P13, a neutron star undergoing supercritical accretion. Its X-ray ...

Columbia Professor Brian Metzger helped other astronomers interpret their observations of the unexpected stellar event.

Neutron stars are what remain after giant stars collapse, leaving behind a body so dense that its core crushes protons and neutrons into a tightly packed soup. These objects cool very slowly over ...

The collision of two neutron stars around 130 million light-years from Earth, and the unique physics this merger created, may have shed new light on dark matter. Axions have never been directly ...

Neutron star NGC 7793 P13’s decade-long monitoring shows huge X-ray and spin changes, providing clues to supercritical ...

Some neutron stars may contain a "special type of matter," according to a new NASA study. These observations from NASA's Chandra X-ray Observatory indicate that the interiors of neutron stars might ...