The Nasher Sculpture Center is celebrating its 10th anniversary with large scale sculpture installations across Dallas called the Nasher XChange.  One is at the Trinity River Audubon Center, where I shoot a lot and have a working relationship.  As part of it, they are apparently shining lights up into the sky to put a spotlight on each location (so to speak).  I just managed to get out and shoot the lights a bit, and it makes for a pretty neat effect.