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

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

Scientists believe this long stream of gas may have formed when several galaxies collided millions of years ago.

Astronomers have tracked a powerful blast of radiation back to its source, finding a neutron star collision within colliding galaxies.

Neutron stars harbor some of the most extreme environments in the universe: their densities soar to several times those of ...

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

When massive stars collapse, they can form neutron stars—objects so dense that atoms themselves are crushed apart. But some physicists believe the collapse could go even further, creating an exotic ...

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.

In 2020, astronomers discovered a violent cosmic event that has led them to rethink how extreme pairs of astronomical objects form. These pairs are capable of producing powerful cosmic collisions. The ...

Scientists have found the first strong evidence that a neutron star and a black hole merged while travelling in an oval-shaped orbit ...