"Faster than light" particles threaten Einstein

GENEVA (Reuters) – Sub-atomic particles apparently traveling faster than light could force a major rethink of theories about how the cosmos works and even allow dreams of time travel and extra dimensions, scientists said on Friday.

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Time Travel – Will It Ever Be Possible?

Time travel is possibly the most interesting issue in all of physics. On the other hand, there’s not much physicists can do about it; it is just not yet possible to do much work on the subject. Aside from a very few very specific experiments “around the edges,” it isn’t possible to investigate time the way physicists are able to examine most other aspects of this universe. [...]