Asteroid fields are regions of space occupied by numerous, irregularly shaped rocks or other debris. These asteroids are usually remnants of planets that have broken apart due to an internal explosion, cometary impact, or other, less natural, apocalyptic events. They often form the shape of a ring around a planet or star as they get trapped by its gravitational pull.
Asteroid fields are extremely dangerous to navigate and have claimed the lives of many ill-prepared pilots throughout history. Few have found themselves stuck in an asteroid field and lived to tell the tale; most pilots simply avoid asteroid fields altogether. Statistically, the possibility of successfully navigating an asteroid field is approximately three thousand, seven hundred and twenty to one. It is because of this that one not only has to contend with the many rock formations in an asteroid field but the many wreckages floating around as well.
Pirates, bounty hunters, and other less-than-savory individuals favor these asteroids to hide from sight or evade pursuit. There are many tales of wealthy criminals making their home on asteroids and hiding their great treasures in one of the many caves or craters. The exogorth, more commonly referred to as the space slug, often makes its home in asteroids. Although they generally feed on minerals and mynocks, there have been occasions when these slugs have attacked or even devoured entire ships.