Time, as we experience it on Earth, may not be as constant as we imagine. According to Einstein’s theory of general ...

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

A test using atomic clocks will watch superpositions ride Earth’s curved space-time and see if Einstein can play nice with ...

Records from Albert Einstein's final years are being published as a book around 20 years after their discovery, as ...