The Aiken Basin is:

•  2500 km in diameter

•  12 km deep

•  pitch black

•  first observed by the Galileo spacecraft

•  The Highlands rocks are largely Anorthosite

•  high concentration of very rare metals like Titanium

•  The Maria are mostly made up of dark basalts

Inferences of the moon:

•  airless

•  low gravity

•  round

•  rocky terrain

•  high inclines

•  extreme temperature