Circumstance

Circumstance is a UNSC colony world in the Epsilon Eridani System, along with Tribute, Beta Gabriel, and Reach. Circumstance was apparently famous for its universities and courts of justice. It is unknown if it was glassed by the Covenant or still held by the UNSC.

Trivia
In the Halo: Reach live-action short "Remember Reach", Circumstance is a destination listed at the Manassas Spaceport.