Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

A fringe new theory suggests that time is the fundamental structure of the physical universe, and space is merely a byproduct. According to Gunther Kletetschka, a geologist — not a physicist, you’ll ...

Physicists are quietly testing an audacious idea: that the mass of everything around us might not come from an invisible ...

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

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