Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

New observations of two black holes merging have confirmed predictions made decades ago by Albert Einstein, Stephen Hawking, ...

The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test ...

Interference from human activity has always been a sticking point in astronomical observations. Radio astronomy is ...

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and ...

UC Riverside has developed a technology that enables scientists to peer deeper into the universe. Gravitational-wave science ...

Physicists are eyeing charged gravitinos—ultra-heavy, stable particles from supergravity theory—as possible Dark Matter ...