The geometry of space, the setting in which physical laws operate, may hold clues to some of the biggest unanswered questions in fundamental physics. The underlying structure of spacetime itself could ...

Researchers from around the world have sought to answer important questions about the most basic laws of physics that govern our universe. Their experiment, the Majorana Demonstrator, has helped to ...

A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

Encouraged by successes in understanding black holes, theoretical physicists are applying what they’ve learned to whole ...

A longstanding question has lingered over physics labs and philosophy departments alike: could our universe be nothing more ...

If so, laws might change when the universe itself changes phase. In the early universe, as temperatures and densities shifted, forces split apart from a unified origin. What we call “laws” may be like ...

Fundamental questions that particle physicists have pondered for decades might be answered when a $9.2 million neutron physics beam line is built at the Department of Energy’s Spallation Neutron ...

Black holes bend space and time in extreme ways — enough that some scientists think entire universes can form inside them. If ...

A new study claims to show evidence of gamma-ray emissions that closely resemble those expected from two weakly interacting ...

A quarter of a century ago a conjec­ture shook the world of theoretical physics. It had the aura of revelation. “At first, we had a magical statement ... almost out of nowhere,” says Mark Van ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the bending of space and time. Quantum mechanics governs the world of particles ...

How can time feel so obvious, so woven into the fabric of our experience and yet, for thousands of years, remain the bane of ...