Chinese artist Cai Guo-Qiang is perhaps best known for his Project for Extraterrestrials, a series of work incorporating elaborate gunpowder explosions. An exhibit featuring his museum-wide installation Inopportune opens at Site Santa Fe on Saturday, Jan. 21. The piece will incorporate sculpture, video and drawing. At noon, Guo-Qiang will give a lecture describing some of the philosophical foundations of his creations. The show runs through March 26. For details, call (505) 989-1199 or visit www.sitesantafe.org.