With the laws of physics (currently) prohibiting faster-than-light travel, velocities are limited to a mere 300,000,000 ms-1. By any Earthbound measure that's very quick indeed, but it'll still ...

If humanity ever wants to travel easily between stars, people will need to go faster than light. But so far, faster-than-light travel is possible only in science fiction. In Issac Asimov’s ...