Gravitational waves are energy-carrying waves produced by the acceleration or disturbance of massive objects. These waves, ...

Spacetime itself would also need to be “quantized,” or broken down into constituent parts. This is what the notorious string theory attempts to do, as does loop quantum gravity, currently considered a ...

What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...

Scientists in Wales have built the world’s most sensitive table-top interferometer, which is a miniature, ultra-precise ...

The world's most sensitive table-top interferometric system—a miniature version of miles-long gravitational-wave detectors ...

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 ...

From Newton’s falling apple to Einstein’s curved spacetime, our understanding of gravity has come a long way, yet this ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The id ...

For over a century, scientists have been intrigued to decode the perplexing scenery behind contemporary physics. It's been up for many years, and yet the experts still have no idea how to bridge the ...

This Star Trek concept ignited a dream that humans could one day travel faster than the speed of light. Now physicists are ...