  For any degenerating Calabi-Yau family, we introduce new limit space which we
call galaxy, whose dense subspace is the disjoint union of countably infinite
open Calabi-Yau varieties, parametrized by the rational points of the
Kontsevich-Soibelman's essential skeleton, while dominated by the Huber
adification over the Puiseux series field.
  Other topics include: projective limits of toroidal compactifications,
locally modelled on what we call the limit toric varieties, the way to attach
tropicalized family to given Calabi-Yau family, which are weakly related to
each other.
