The Universe is the stage for titanic collisions between massive objects, generating waves that propagate through the fabric ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Einstein’s equations look simple on paper but when physicists follow them to their logical end, the universe becomes far ...

For close to a century, scientists have been trying to marry Albert Einstein’s General Theory of Relativity and quantum theory—our two best bets on understanding the universe on a macroscopic and ...