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 ...

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 ...

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 ...

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.