Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

The particle in question, known as a sterile neutrino, was supposed to only interact with gravity and have zero interactions ...

China’s decision to halt work on what was meant to be the world’s largest particle accelerator has reshaped the global race ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

An analysis of several experiments aimed at detecting the mysterious neutrino has identified a hint of a crack in the ...

New results from the MicroBooNE experiment rule out the existence of a sterile neutrino, reshaping how scientists think about ...

Physicists have spent decades treating mass as something the universe simply hands to particles, a property encoded in ...

The theorized unseen structure of spacetime could also explain of the outstanding questions about the accelerating expansion ...

Physicists are exploring whether hidden dimensions and the shape of space could help explain why fundamental particles have ...

Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.