Clocks tick faster on Mars than they do on Earth, in part because Mars experiences less gravitational pull from the Sun. Now scientists have calculated just how much faster -- 477 microseconds, on ...

The exploration of quantum information challenges objective reality, positing the universe as a hologram is explored through ...

For the first time, a group of physicists is arguing that a warp drive is not just a mathematical curiosity but something ...

Time travel has long lived in the realm of science fiction, but a growing body of physics research now argues that journeys into the past might fit inside known laws of nature without tearing ...