A survey of more than 1,000 physicists finds deep disagreements in what quantum theories mean in the real world ...

For a century, quantum theory has passed every experimental test, but physicists can’t agree on how to use it to paint a ...

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

In July 1925, physicist Werner Heisenberg wrote a letter to Wolfgang Pauli sharing his new ideas about what would eventually ...

Generations of researchers have tried to create a quantum theory of gravity, and their work has produced sophisticated mathematical constructs, such as string theory. But experimental physicists haven ...

A new study shows quantum entanglement follows universal rules across dimensions using thermal effective theory.

String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single ...

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, connects quantum ...

A new theory suggests gravity could possibly be the result of entropy—which would mean everything in the universe would fall apart if it all remained unchanged.