Post-spacetime physics refers to the idea that our familiar 4D spacetime is not fundamental but emerges from deeper ...

Could the route to the stars be paved not by impossible physics, but by spacetime itself? A new warp drive model has been ...

When speaking of our universe, it's often said that "matter tells spacetime how to curve, and curved spacetime tells matter how to move." This is the essence of Albert Einstein's famous general theory ...

Einstein's equations have withstood every experimental test for more than a century; however, according to one philosopher, ...

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 ...

Black holes are some of the most mysterious objects in the universe, but they aren’t always silent. When two black holes are ...

There is a glaring gap in our knowledge of the physical world: none of our well-established theories describe gravity’s quantum nature. Yet physicists expect that this quantum nature is essential for ...

A team of scientists has used X-ray and gamma-ray observations of some of the most distant objects in the Universe to better understand the nature of space and time. Their results set limits on the ...

Quantum foam's implications for spacetime fluctuations are crucial for addressing key questions in physics, from black holes ...

The quantum revolution in physics — whose 100th anniversary we have just celebrated — taught us that at the most basic level the world is bizarrely different than it seems. But, we appear to only have ...