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

A new data release more than doubles the number of gravitational-wave candidate events—and reveals unexpected complexities of merging black holes ...

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 tracing small molecular clouds located near the Milky Way disc have “seen” the skeleton of the magnetic field surrounding them for the first time to better understand its ...

A soaring cosmic symphony surrounds us; its notes emerge from massive celestial objects crashing together hundreds of millions or even billions of light-years away. Ever since astronomers announced ...

An international team of scientists, including Northwestern University astrophysicists, has detected 128 new ...

When the densest objects in the universe collide and merge, the violence sets off ripples, in the form of gravitational waves ...

Even 200 years after asteroid 16 Psyche was discovered, astronomers continue to puzzle over its formation. Psyche is the 10th ...

This also means that there could be hidden curvatures of space-time or gravitational fields, which could explain a fundamental issue in physics: the hierarchy problem. There are several ongoing ...

An illustration of two stellar-mass black holes merging in the accretion disk of an active galactic nucleus. (Shu-Rui Zhang) ...