The first-ever neutron star merger detected by gravitational waves is still giving off X-rays and scientists aren't sure why. Jackson Ryan was CNET's science editor, and a multiple award-winning ...

Scientists have reported mysterious X-ray emissions where, more than three years ago, they spotted the first known collision of two neutron stars.

NASA has unveiled a breathtaking new image showing what appears to be a massive “cosmic hand” stretching across 150 ...

This past June, SpaceX’s 11th resupply mission to the International Space Station brought with it a 372-kilogram box containing an X-ray telescope called the Neutron Star Interior Composition ...

Now, an X-ray signal dubbed XT2 from a galaxy 6.6 billion light-years away has revealed another neutron star merger, which left behind a single, heavier neutron star with an incredibly powerful ...

A bright burst of X-rays captured by NASA’s Chandra X-ray Observatory in a galaxy located 6.6 billion light years from Earth likely signaled the merger of two neutron stars into a new, heavier ...

Neutron stars—the dense remnants of massive stellar explosions—and their presence in X‐ray binaries serve as natural laboratories for extreme physics. In these systems, matter is transferred ...

“Circinus X-1 acts in some ways like a neutron star and in some like a black hole,” said co-author Catherine Braiding, also of the University of New South Wales.

The X-rays, seen blasting out of the neutron star in 2013, are reflections off dust clouds that sit between Earth and the star, designated Circinus X-1.

The neutron star rotates once every ~283 s and shines brightly in X-rays by accreting gas from the stellar wind emanating from the massive companion star. The captured gas falls in the strong ...

"Circinus X-1 acts in some ways like a neutron star and in some like a black hole," co-author Catherine Braiding, of the University of New South Wales in Sydney, Australia, said in the same statement.