The Solar System is the planetary system inhabited by humanity. During the Golden Age, humanity forged an empire that spanned much of the system, but the catastrophic effects of the Collapse forced humans to retreat to Earth, abandoning their many worlds to various other forces.
Notable celestial bodies
- Mercury—a former garden world, now converted by the Vex into a planet-sized machine.
- Venus—a volcanic jungle world and the site of the Ishtar Academy, humanity's greatest center of learning. Now occupied by the Vex and the Fallen House of Winter.
- Earth—mankind's homeworld. The only safe human settlement is The Last City, with pockets of hidden human communities. The Fallen House of Devils and House of Kings control the rest of the planet.
- Mars—the first human city outside of Earth, Freehold, was founded here. Now occupied by the Cabal, who are fighting invading Vex forces for control.
- Asteroid Belt—a ring of asteroids and Golden Age debris marking the boundary between the Inner System and the Outer System.
- Ceres—the largest object in the Asteroid Belt. Ceres was a major hub of the House of Wolves before it was destroyed by Queen Mara Sov's Harbingers.
- The Reef—an inhabited collection of asteroids and derelicts that are the home of the Awoken. Asteroids with Awoken settlements include 4 Vesta, 2 Pallas, 10 Hygiea, 65 Cybele, and 5560 Amytis.
- Jupiter—a gas giant. Its moons are believed to have been a major cornerstone of Golden Age civilization.
- Saturn—a gas giant. Oryx's Dreadnaught and a Hive fleet now orbit the planet.
- Nessus—a dormant Vex machine world that is also under Red Legion occupation.
The bodies of the Solar System are not based on real-world scans, as per gameplay/enjoyment priorities.
List of appearances