The presence of parallel universes may appear like something cooked up by science fiction authors, with slight relevance to current theoret...

Albert Einstein was very clear in his day. Physicists are very clear now. Time is not absolute, despite what common sense tells you and me....

It works just like a hydrogen fuel cell except that the liquid used for storing energy is saltwater. This isn’t far from the water powered ...

As the U.S. continues to shift away from space travel conducted by its government-funded entity, NASA, the agency has decided to put its ad...

Scientists have proposed a new theory that combines some of the most mysterious phenomena in the Universe - black holes, gravitational wave...