A newly analyzed gravitational-wave event has revealed something unexpected about one of the Universe’s most violent encounters. Scientists have found the first strong evidence that a black hole and a ...

Astronomers analyzing the gravitational-wave event known as GW200105 report evidence that a black hole and neutron star ...

Neutron stars harbor some of the most extreme environments in the universe: their densities soar to several times those of atomic nuclei, and they possess some of the strongest gravitational fields of ...

Scientists analyzing a gravitational-wave signal have discovered that a neutron star and black hole spiraled together on an ...

Some of the universe’s densest objects can twist, stretch, and resonate in ways that challenge even the most seasoned ...

The catastrophic collision of a black hole and a neutron star sent ripples across the universe. New analysis of those ripples could upend a major theory about how these extreme pairs form.

Because the nuclei involved are extremely rare and short-lived, scientists usually rely on theoretical models rather than ...

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

Gold and other heavy elements are born in some of the universe’s most violent events—but scientists still struggle to ...