Slipspace Anomaly

The Slipspace Anomaly is an event that occurred in 2552, in which a Forerunner artifact carried by the UNSC Apocalypso created a giant rip in both realspace in Lunar orbit and in slipspace. The rip acted as a portal between the years 2552 and 2004, and both the UNSC Orbital Defense Platform Nassau Station and part of the Apocalypso ' s shipbound AI Melissa were sent back through it. In addition, all communications within the Solar System were silenced for over seven seconds. When the artifact was deactivated several weeks later, the rip closed and the AI was rejoined in 2552; the fate of Nassau Station remains uncertain.