The human colonists have long since been forced to fend for themselves. Earth contact abruptly ceased almost simultaneously throughout the colonies several decades ago. Several expeditions were sent over the next few years to re-establish a link with Earth, but no ship has ever returned. Almost all abruptly stopped commutating at the edge of the home system. Since then, nothing but the moaning static of empty space has greeted the increasingly infrequent hails to home. Even more alarmingly, several of the Unknown’s remains that have been gathered for study were found to be wearing suits and carrying gear not seen on any of the colonies. Fears for what may have happened on Earth grow, but it has been years since the resources could be spared to probe further into the mystery.