Spaceships in *Star Wars* frequently use energy weapons for combat. Given that [Sir Isaac Newton is the deadliest SOB in space][1], I was wondering if this also applies to the non-kinetic space weapons used in *Star Wars*. Do they have a maximum range after which the shot dissipates, or do they veer off into deep space and possibly hit some unlucky sod several millennia later?

  [1]: https://www.youtube.com/watch?v=sCoHT_cHPzY