moon ping time 2.6 seconds voyager ping time 172,800 seconds 1000+ years from now a ship will take off from earth or orbit and pass Voyager in a few hours (as

moon ping time 2.6 seconds voyager ping time 172,800 seconds 1000+ years from now a ship will take off from earth or orbit and pass Voyager in a few hours (assuming the planet is not turned into one huge radioactive, forever-checmical ocean before then)