KnowraHeliopauseLinked fromLinked fromThe 5 pages that link to Heliopause, each with the reason it gives.All 5Broader topic 3Related 2Voyager 1Related: Voyager 1 crossed this boundary in 2012, marking its entry into interstellar space.Voyager programRelated: Crossing this boundary marked the Voyagers’ departure from the heliosphere.HeliosphereBroader topic: It marks the outer limit of the Sun’s wind-dominated region.HeliophysicsBroader topic: It marks the outer limit of the heliosphere’s solar-wind influence.Interplanetary mediumBroader topic: It marks the outer limit of the region directly filled by the Sun’s outward-flowing plasma.