Almost 25,000 light-years away, two dead stars, each more massive than our Sun, but only 20 kilometers in diameter, orbit one another in less than five hours. This unusual pair of extreme objects, ...

A research team led by Caltech may have just discovered the first-ever superkilonova, a cosmic phenomenon in which a star ...

Astronomers have discovered 21 "one in a million" binary systems in which sun-like stars orbit a hidden "dead star," an extreme dense and compact object called a neutron star. One of the neutron stars ...

In 2017, astronomers found hypervelocity stars believed to have come from the Large Magellanic Cloud, supposedly kicked out ...

Scientists have discovered that when neutron stars collide, they leave behind a remnant that doesn't resemble either of them. Neutron stars are the universe's most extreme stars, born when massive ...

The universe has no shortage of oddities, and researchers at the National Science Foundation’s NOIRLab have observed another one in the form of a particular binary star system. The system, called ...

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 from a ...

A new study showing how the explosion of a stripped massive star in a supernova can lead to the formation of a heavy neutron star or a light black hole resolves one of the most challenging puzzles to ...

This illustration depicts a binary star system consisting of a dense neutron star and a normal Sun-like star (upper left). Using data from the European Space Agency's Gaia mission, astronomers found ...

Volume rendering of density in a simulation of a binary neutron star merger. New research shows that neutrinos created in the hot interface between the merging stars can be briefly trapped and remain ...

Using the Australian SKA Pathfinder (ASKAP) telescope, astronomers have discovered a new millisecond pulsar (MSPs) at a ...

"These extreme events stretch the bounds of our understanding of physics, and studying them allows us to learn new things." When you purchase through links on our site, we may earn an affiliate ...