Gravitational waves are ripples in spacetime produced by violent cosmic events, such as the merging of black holes. So far, ...

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

A theoretical study accepted by Physical Review Letters predicts that gravitational waves, the faint ripples in spacetime produced by colliding black holes and neutron stars, can leave detectable ...

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 ...

Gravitational waves are ripples in spacetime produced by violent cosmic events, such as the merging of black holes. So far, direct detections have relied on measuring tiny distance changes over kilome ...

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

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 ...

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 ...

A neutron star and black hole were detected merging along an unusual oval orbit, challenging long-held theories about how these systems form.

A new study published in Nature Astronomy indicates that the dense, star- and dark-matter–rich environments around supermassive black hole binaries pack on the order of a million solar masses into ...

A hundred years ago, Albert Einstein published his theory of relativity. On this occasion, Euronews’ Space magazine plunges into the subject of gravitational waves and features the joint ESA-NASA ...

Decades ago physicists realized that gravitational waves are no mere passing phenomenon. Instead those ripples in space should leave behind permanent marks: a fixed distortion in their wake. So far ...