A new theoretical framework shows how subtle fluctuations in spacetime could be detected using existing interferometers.

A clear look at how physics defines gravity, from Newton’s force-based model to Einstein’s view of curved spacetime, and why the distinction matters in modern science.

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

A team of researchers led by the University of Warwick has developed the first unified framework for detecting "spacetime fluctuations"—tiny, random distortions in the fabric of spacetime that appear ...

Scientists use distant gamma ray bursts to prove that light maintains its constant speed, reinforcing Einstein's theory.

“Gray” holes are a theoretical concept proposed to describe objects that don’t fully behave like black holes or white holes. Unlike black holes, which only absorb matter, or white holes, which only ...

If the pulsar is confirmed, it could enable more precise measurements of the space-time around the galaxy’s central supermassive black hole ...

Can a single particle have a temperature? It may seem impossible with our standard understanding of temperature, but ...

Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...

Harry O'Mara, Luis Enrique Rosas Hernandaz, Sachini Withanage, Hemanta Pradhan and James Mangum share what they have been able to accomplish with the support of the Hughes family in the following ...

"We have long treated the Planck scale like a blurry limit," said Kulkarni. "But if you treat space as an information storage medium, geometry dictates a specific packing efficiency. The universe has ...