As it heads out of the solar system never to return, the deep space probe Voyager 1 is headed for yet another cosmic milestone. In late 2026, it will become the first spacecraft to travel so far that a radio signal from Earth takes 24 hours, or one light day, to reach it.
So that would be a 70,000 year transfer, but if something meant to go fast like Project Daedalus actually happened in the late 70s, it would be sneaking up on Bernard’s Star right about now.