Floor 0507

Floor 0507, or more simply 507, was one of over a thousand decks on a Mondasian colony ship. The floor contained the largest of the ship's solar farms.

When the colony ship almost traversed into a black hole, each of the ship's floors was affected by time dilation. Located approximate to the middle of the ship, time travelled faster on floor 507 than on the floors above, but slower than on the floors below.

Many years before Bill Potts arrived on floor 1056, there was an expedition from 1056 to 507. The Mondasians who went on the expedition never returned. (TV: World Enough and Time)