General relativity is one of the most successful theories mankind has ever developed, but one of its predictions—the existence of gravity waves—has never been confirmed. Gravity waves are analogous to ...

As an international collaboration of radio astronomers from Australia, Germany, the UK, South Africa, the Netherlands, Italy and France, the MeerKAT Pulsar Timing Array (MPTA) has created a ...

The newly detected gravitational wave background could be the result of supermassive black hole binaries that orbit each other for a few million years before merging. By now you’ll have seen the news ...

The universe is humming with gravitational radiation — a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it. That is the conclusion of several ...

Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have been able to “hear” the ...

Astronomers may be getting closer to discovering as-yet hidden cosmic secrets, such as the nature of dark matter and the presence of widespread distortions in space-time, researchers reported at the ...

Gravitational waves are ripples in the fabric of spacetime predicted by Albert Einstein’s general theory of relativity, first detected in 2015. But an expected corresponding low-frequency ...

Infrared cosmos: the cosmic infrared background at 857 GHz as seen by the European Space Agency's Planck mission. (Courtesy: ESA/Planck) Physicists in the UK and the US have shown how to use one kind ...

Today, researchers announced the first direct evidence* for cosmic inflation—the idea that, less than a second after the Big Bang, the universe blew up like a balloon in a process of exponential ...

LIGO confirmed the existence of gravitational waves in 2015, detecting one-time perturbations of spacetime from the merger of large black holes. There should be a background of gravitational waves ...