FTL (Science Fiction and Physics)

Although impossible by our best current understanding of physics, FTL is often used in Science Fiction as a way to make space travel stories workable given the vast distances between stars.

Breaks down into three types:

Hypespace   Travel through a different dimension which (presumably) has different laws of physics which allow for travel that is faster then is possible in our space.  Ex. Star Wars, Babylon 5

Warp Drive  Travel made possible by modifying the physical properties of the space we live in.  Ex. Star Trek

Folding Space  Travel to a distant point without going through the space in-between.  Ex. Dune, any travel through a worm hole.

The Science of Interstellar