Among the most intriguing ideas is warp drive—a concept that challenges Einstein’s Theory of Relativity by suggesting ...

To construct a warp drive, we'd need 10 times more negative energy than all of the positive energy in the universe. In 1994, Mexican theoretical physicist Miguel Alcubierre decided to figure out ...

Let's take an outlandish example. If there were aliens flying around our galaxy with the sort of warp drive technology we ...