Earth from Planet 9
The devastation was complete. Every satellite photo of Earth showed nothing left but rock and ash.
We, the R7 Series Robot, and the few humans from our last shuttle tour, are marooned here on Planet 9. Calculations for survival are slim.
Most of the visitors are over 60 years old. Fortunately, some brought their grandchildren. If we can nurture these through childbearing age, we may yet survive.
Our humans are depressed; they need hope to survive. Perhaps our thriving hydroponic gardens will provide a playground for the children. Play can foster hope.
Hope is the calculation where anything is possible.