Time has always seemed like the one thing physics could count on. Matter changes, stars die, particles flicker in and out, ...

The question of how gravity interacts with the quantum world has long perplexed physicists, but a non-quantum theory of space ...

Werner Heisenberg's famous uncertainty principle describes one of the most intriguing features of quantum physics: certain pairs of physical quantities describing a particle, such as position and ...

Researchers have created quantum control techniques that can make a system appear to run backward in time. By precisely managing quantum measurements, they can reshape the system's arrow of time and ...

An experiment with a toy universe made up of extremely cold atoms shows how time can emerge from quantum interactions, ...

Everything around us, from atoms and molecules to planets and galaxies, is governed by two extraordinarily successful ...

A surge of funding and federal action is giving the once-futuristic technology a more immediate role in everything from ...

A familiar thought experiment about a hidden cat has helped scientists take a meaningful step toward building reliable ...