There are still a few weeks left to see the Met Breuer’s retrospective of Marisa Merz.  Merz, who was born in 1926, is the only female member of the Turin-based Arte Povera movement and spent much of her career in the shadows of well-known men, including that of Mario Merz, her husband.  This exhibit brings her into the forefront and her works are revelatory, both intimate and grand.  Arte Povera’s distinctive trait was the use of cheap or discarded materials to create works of art that are often on a monumental scale.  Marisa Merz arranged her works in her house, rather than in a gallery, and they seem to have arisen from her home life and base regardless of their size.  There are about 100 pieces in this show and it is strange, moving and beautiful, worthy of its name:  “The Sky Is A Great Space.”