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Travel between star systems - which may someday be do-able but given that even our closest star is 4.6 light years away it is something that will require technology and resources that we can only dream of by today's standards.

It is also a very big subject in science fiction; the rapid transit between star systems by faster-than-light travel; Star Trek, Star Wars, and Mass Effect are examples.
While Voyager 1 is technically making interstellar travel, at the rate it is going, it will take more than 72,000 years from now to do so.
by Nick Weiner January 31, 2009
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