"God does not play dice." This famous remark by Albert Einstein critiqued the probabilistic nature of quantum mechanics.

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

Most metals look silvery. Gold looks golden. (But remember, “all that glitters is not gold”.) The reason isn’t myth or magic: ...

Physicists are rethinking time itself. Long treated as a basic part of the universe, time may instead be an illusion—a side ...

At cosmological scales, Albert Einstein’s theory of general relativity has given scientists an immensely accurate blueprint ...

While quantum mechanics explains the small-scale, low-energy behavior of electrons, relativity becomes important when those same electrons move fast enough for strange effects like spin-orbit coupling ...

Scientists have discovered a new way that matter can exist—one that is different from the usual states of solid, liquid, gas ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

One of the biggest challenges in modern physics is uniting quantum mechanics and general relativity. A new experiment may ...

In fact, quantum field theory – which forms the basis for our modern understanding of how the building blocks of matter interact – unites quantum mechanics and special relativity.

Since the arrival of quantum mechanics and the theory of relativity, physicists have lost sleep over the incompatibility of these three concepts (three, since there are two theories of relativity ...