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

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

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

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

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

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 ...

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

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 ...