For the last three years, AIA New Orleans has invited teams of architects and artists to takeover “hidden” spaces within the city, transforming them with the latest design tech and hopefully testing the boundaries of this at-times-ephemeral place in the process. One of installations at this year’s DesCours comes from the Chicago team of Marshall Brown and Dana Carter. (Brooklynites may know Brown from his work on the anti-Ratner UNITY plan for the Atlantic Yards.) The duo has focused their gaze on the heavens, where they are harnessing the sun—through photovoltaic, of course—and transforming it for the weeklong nightly event into a constellation in no less a celestial place than Charles Moore’s Piazza d’Italia. More illuminating photos after the jump, and if you happen to be in town for the event, let us know what you think about this or any of the other 13 projects.