Add Yahoo as a preferred source to see more of our stories on Google. In this 2018 photo made available by CERN, Nikolai Bondar works on the LHCb Muon system at the European Organization for Nuclear ...

When fundamental particles are heavier or lighter than expected, physicists' understanding of the universe can tip into the ...

A new study suggests subatomic particles called muons are breaking the laws of physics. This may mean a mysterious force is affecting muons, which would make our understanding of physics incomplete.

A chameleon-like force that shifts its nature based on its environment could explain a major physics quandary: how the mysterious substance called dark energy is compelling the cosmos to expand faster ...

Decades of weird experimental results appeared to support the existence of the sterile neutrino, a hypothetical particle that ...

In recent years, a group of Hungarian researchers have made headlines with a bold claim. They say they’ve discovered a new particle — dubbed X17 — that requires the existence of a fifth force of ...

Add Yahoo as a preferred source to see more of our stories on Google. Galileo, holding two balls, about to perform his legendary experiment. Hulton Archive/Stringer via Getty Images If you drop a ...

Two extremely precise experiments agree with a previously shocking measurement of just how big the proton is, which may help ...

No one can question the impact of science on human civilization, and the importance of experimentation in science is equally undeniable. Some experiments confirm what we already know, others suggest a ...

Physics, especially the part about forces and motion, often feels like a maze of confusing concepts and formulas. If you’ve ever stared at a problem about an object moving or a force acting and ...

Preliminary results from two experiments suggest something could be wrong with the basic way physicists think the universe works, a prospect that has the field of particle physics both baffled and ...