.Each Voyager probes include 3 sets, or even divisions, of thrusters: 2 sets of perspective propulsion thrusters as well as one set of trail correction maneuver thrusters. In the course of the mission's earthly flybys, both forms of thrusters were used for different functions. Yet as Voyager 1 takes a trip on an unchanged road out of the solar system, its thruster requirements are simpler, and also either thruster branch may be made use of to aim the space capsule at Earth.