A Solar System in EVE is an area of navigable space that players can move around in and interact.
It can consists of a Star, its Planets, their Moons along with any other object in the star's orbital space, including Stations, Asteroid Belts, Ice fields, Stargates, Outposts, Deadspace Complexes, and other objects.
Solar Systems are interconnected by Stargates, which players use to travel from one Solar System to another. Travel within Systems can be by standard propulsion, or Warp. The Local channel allows communication within the same star system.