Large Magellanic Cloud

Path Kethona was a Magellanic cloud 160,000 lightyears from the Milky Way.

Overview
Path Kethona was thought of by some Forerunners as the origin of the Flood. The Librarian used the Audacity to travel Path Kethona to examine this. Upon initial scans it appeared that the galaxy had no technological civilizations.

Trivia

 * Path Kethona is the Forerunner name for the Large Magellanic Cloud

List of appearances

 * Halo: Silentium