Sky Box

Juvenile Lockup (Also known as The Sky Box) is a prison where all those convicted of a crime under the age of maturity are sent until they are 18.

Summary
The Sky Box is only seen in the Pilot episode but is mentioned in many others. Those who are under the age of maturity when convicted of a crime are sent to the Sky Box until the age of 18. At 18, they are reviewed and it is decided if they should be executed or released.

Population
While the population of the Sky Box is unknown, it is believed there are more than a few hundred based on scenes from the Pilot episode. Only 100 were selected to be sent to the ground, while the others presumably stayed behind. It is unknown what happened to the residents of the Sky Box.