Scientists developing more sensitive next-generation gravitational wave detectors struggle with technical challenges that might be easily overcome by putting such detectors on the moon.
Gravitational waves are ripples in space-time created by the interaction of massive objects in space, such as black holes and neutron stars. Their existence was first predicted by Albert Einstein in his 1916 paper describing his theory of general relativity. In 2015, scientists made the first detection of gravitational waves, observing ripples from the collision of two black holes. The discovery won astrophysicists Kip Thorne, Barry Baris and Rainer Weiss the 2017 Nobel Prize for Physics. Subsequent observations have also detected gravitational waves from colliding neutron stars. Learn more about gravitational waves here.
Knowing that black holes tend to have these masses could help provide a new way of measuring the expansion rate of the universe.
NANOGrav made the first detection of low-frequency gravitational waves this year. Now, the hunt is on to find the source of these ripples in space — and supermassive black holes are lead suspects.
Gravitational waves from merging black holes distorted due to a phenomenon predicted by Einstein could be a new way of measuring the rate of cosmic expansion.
The very fabric of the universe is ringing with gravitational waves from its earliest epoch, and researchers have finally "heard" this cosmic symphony.
In a historic first, astronomers have detected low-frequency gravitational waves using a galaxy-sized antenna of millisecond pulsars in the Milky Way.
Astronomers have created the first model for how debris around exploding stars could emit gravitational waves powerful enough to be detected by instruments on Earth.
May 24 marked the start of Observation Run 4, the latest gravitational-wave hunting effort of the LIGO-Virgo-KAGRA Collaboration. But only LIGO is fully operational at the moment.
The new BlackGEM array will hunt for black hole mergers and neutron star collisions, cataclysmic events that generate ripples in space-time known as gravitational waves.
On April 6, the Indian government greenlit the construction of a Laser Interferometer Gravitational-Wave Observatory (LIGO) facility in the western state of Maharashtra.
Two mysterious cosmic phenomena appeared in the same patch of sky nearly at once, and it may not be a coincidence.
The gravitational waves would be weak, but potentially detectable by the next joint observing run of the world's gravitational-wave detectors.
From black holes to the search for life, scientific breakthroughs are on the horizon as new observatories come online.
Astrophysicists tested a potential approach to determining the state of the matter inside a neutron star, a tricky feat.
New research suggests that the expansion of the universe could be measured using colliding black holes as 'spectral sirens.'
Astronomers hope to use pulsars scattered around the galaxy as a giant gravitational wave detector. But why do we need them, and how do they work?
GOTO telescope will be the first to hunt for colliding black holes and neutron stars in a bid to find sources of gravitational waves.
Following two years of upgrades, the Laser Interferometer Gravitational-Wave Observatory (LIGO) is almost ready for its next operating run, which is set to begin in March 2023.
Astronomers have spotted the first evidence of a merger event that gave a black hole a kick that left it traveling at around 3 million mph — fast enough for it to escape its host galaxy.
In a new analysis of their gravitational wave data, scientists with the international LIGO-Virgo Collaboration have discovered 10 new examples of merging binary black holes.