Physicists have spent decades treating mass as something the universe simply hands to particles, a property encoded in equations rather than explained from first principles. A new proposal argues that ...

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works extremely well in its own domain: Quantum theory explains how atoms and ...

Physicists have long suspected that beyond the 3+1 dimensions that we are familiar with, there might exist additional space or time dimensions. But in an article published this September, a group of ...