Jacqueline Roberts makes portraits on glass and aluminum plates using a 150-year-old technique called wet plate collodion. The long exposures required by the process ease the subjects into detaching themselves from their immediate surroundings; they appear to the viewer almost as if suspended in time and in space. Roberts's portraits emerge from that captivating state of limbo to evoke the transitional stage from childhood to adolescence. Nebula, Latin for mist, reflects on the turmoil of growing up, with all its relational, psychological, and emotional changes.