Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks.

Time travel is possible. For example, an object traveling at high speeds ages more slowly than a stationary object. This means that if you were to travel into outer space and return, moving close ...

Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically with the use of a hypothetical device ...

As space travel gains traction and astronauts spend increasing amounts of time in space, studying its effects on health has become increasingly critical. Is space travel truly safe? Far from it ...

Starting this Friday, the exhibit "Doctor Who Worlds of Wonder: Where Science Meets Fiction" will take fans behind the scenes ...