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

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

These provide statistical insights into the collisions between the incredibly compact objects that cause them, whether neutron stars or black holes. The new detections have also allowed us to find ...

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 ...

Most gamma-ray bursts—the brightest, most powerful explosions in the universe—are tracked back to the deaths of massive stars. But a new discovery suggests that such enormous explosions can come from ...

A recently detected flash of energy appears to have emanated from the wreckage of colliding galaxies, according to an ...

A recently detected flash of energy appears to have emanated from the wreckage of colliding galaxies, according to an international team of ...

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

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

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.

A powerful "gamma-ray burst" has been seen exploding from merging neutron stars hidden within a previously unknown mini-galaxy leftover from an ancient cosmic crash. The "collision within a collision" ...

A research team is using astrophysical explosions to understand the mysterious forces at work in some of the smallest ...