Well on that note, we may actually be able to travel to other galaxies instantly! As in, FTL, it's actually pretty amazing. This MAY be achievable in the form of teleportation and the use of Quantum Entanglement.
The idea is that when two particles interact, they become quantum entangled, which means that the properties of one particle are dependent on the properties of the other particle and vice versa. If they are not disturbed, they can remain in this tangled state and be moved apart, the particles could be hundreds of miles apart. As the properties of one particle are dependent on the other, if one particles property changes (such as it's spin) the other particles property will change instantly in the appropriate format (the other particle would spin in the opposite direction). The idea here is that the speed in which the two properties change is instant, faster than the speed of life.
So if we could theoretically discover how to use this practically, then instant teleportation may be a very real possibility!