Mesula, an icy satellite, existed within the Mid Rim Territories before its destruction. A catastrophic event approximately 11 years Before the Battle of Yavin caused Mesula to break apart. This shattering created the Mesulan Remnants Belt, an asteroid belt composed of icy space rocks. Later, the Pau'an criminal Fyzen Gor chose this belt to conceal the Phylanx Redux Transmitter, a piece of technology he intended to use to spark a robotic uprising throughout the galaxy.
The 2018 canon novel Last Shot, penned by Daniel José Older, marked the initial reference to Mesula.