From phone boxes and flux capacitors to black holes and hot tubs, sci-fi has created plenty of ways to explore the fourth ...

Physicists have long treated space and time as the stage on which quantum particles perform, not as actors in the drama themselves. A new theoretical framework now flips that script, treating space ...

The idea of space travel first began fascinating filmmakers decades before space flight became a reality; some of the ...

A new study examines how time in space impacts astronauts’ brains, possibly having big implications for the future of space flight. Scientists discovered that parts of the brain moved up to 2mm in the ...

Add Yahoo as a preferred source to see more of our stories on Google. Solutions to Einstein's famous equations back in the 20th century describe 'wormholes,' or tunnels through space-time. Mark ...