Time already behaves strangely in modern physics. It can stretch, slow, and split depending on speed and gravity.

For the first time, scientists have observed quantum entanglement in the momentum of massive particles. The result, decades in the making, could help physicists probe the relationship between quantum ...

Few concepts in physics are as familiar, yet as enigmatic, as time. In Einstein's theory of relativity, time is not absolute: ...

Physicists are rethinking time itself. Long treated as a basic part of the universe, time may instead be an illusion—a side effect of quantum entanglement. A new study challenges the traditional idea ...

Atomic clocks are already precise enough to measure tiny effects of relativity, such as time dilation; for example, if you ...

Quantum entanglement occurs when two subatomic particles become linked in such a way that their properties remain connected, no matter how far apart they are. A change to one particle seems to ...

As long as there's been an internet, there's been a way to hack it. Scientists have spent decades imagining a different kind ...

Scientists have found a way to make AI much better at predicting complex, chaotic systems by tapping into the unique power of ...

Some quantum cryptographers want to find ways to keep messages secret even if the rules of quantum mechanics don’t hold. The ...