PHILADELPHIA, PA.- Twelve-and-a-half feet in diameter, a moon-like sphere made of white wool felt formed by artist Tristin Lowe makes its Philadelphia debut this fall in the Joan Spain Gallery in the Ruth and Raymond G. Perelman Building of the Philadelphia Museum of Art. Entitled Lunacy, this large-scale sculpture was created in 2010 and represents one of Lowe’s most ambitious works to date. The felt surface of Lowe’s moon was fashioned of 14 sections that were pieced together by hand evoking the moon’s pocked and cratered surface by what Lowe has described as “an absurd and time-consuming process involving tweezers, small brushes, sizing, and a comb-over technique.” He has said that creating the exterior of Lunacy took about three hours per square foot, with the sculpture measuring a total of 490 square feet. To keep the structure inflated, Lowe used a sealed, airtight