The barrier shows up early in "Star Trek: The Original Series," first appearing ... registers negative for radiation, density ...

Even if distance weren't a problem, there's the Galactic Barrier. In the Star Trek universe, the rim of our Galaxy is surrounded by a massive energy barrier, that makes leaving the Milky Way ...

In Star Trek, dilithium crystals ... be able to circumvent the light-speed barrier. Unfortunately, all of these mathematical theories require energy and types of matter that we don’t know ...