darkSky 2009 is an interactive installation by Tiffany Holmes which presents a series of salvaged lamps that visitors are encouraged to turn on and off, and the resulting energy consumption is presented in real-time as an animation on a single plasma screen. This exhibit was recently on view at the Museum of Contemporary Art MCA, Chicago, from April 4-26, 2009 and will be shown across from the Jean Albano Gallery Booth 549 during the Art Chicago event this weekend at the Merchandise Mart.