Originally Posted by The_Heretic

Even navigating via magnetic fields isn't precise enough for astrogation between stars. You hear NASA trying to explain how difficult it is for a probe to even reach Mars, less land on a certain spot on the planet. Trying to reach another star will take several decimal places more precision than that. Plus, the energy problem remains as well. To get anywhere within any meaningful measure of time will take nuclear energy- at least, if not something more outstanding.