Merging black holes and neutron stars have unusual oval orbits prior to colliding and merging, which challenge the laws of ...

Magnetars are some of the most extreme objects in the universe. A special class of neutron stars, they are celestial bodies that pack the mass of the Sun in a sphere the size of a city. On top of that ...

GW200105 reveals an eccentric orbit before merger, challenging formation models.

The catastrophic collision of a black hole and a neutron star sent ripples across the universe. New analysis of those ripples ...

The final dance of a black hole and a neutron star before their ultimate merger has been revealed, according to new research.

Scientists have uncovered the first robust evidence of a black hole and neutron star crashing together but orbiting in an ...

A recently detected flash of energy appears to have emanated from the wreckage of colliding galaxies, according to an international team of astronomers led by Penn State scientists. The burst, known ...

Scientists report over 100 new gravitational wave detections, doubling the known catalog of black hole and neutron star mergers, providing new data on extreme cosmic collisions.

Researchers said this event, called GRB 230906A, is likely in a stream of gas located about 4.7 billion light-years from Earth.

Scientists analyzing a gravitational-wave signal have discovered that a neutron star and black hole spiraled together on an oval-shaped orbit just before merging. This unusual motion, detected in the ...

How fast can a neutron star spin? This is what a recent study published in The Astrophysical Journal hopes to address as an international team of more than a dozen researchers have identified one of ...

A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge stream of gas. Astronomers have never seen this type of explosive event in an ...