James Turrell's Air Apparent is still quiet. Though the artist continues to enjoy international recognition for his work with light, his installation at ASU's Tempe campus near the light-rail stop on Rural and Terrace remains a relatively undiscovered gem in the desert. Air Apparent is one of many Skyspaces, which Turrell has been making since the '70s. Designed with the help of local architect Will Bruder to be an immersive art experience, Air Apparent is a structure that frames the sky with programmed LED lights to optimize color perception at sunrise and sunset. If it sounds a little out there, it's because it is. Turrell's biggest project, the Roden Crater, is a series of tunnels under an extinct volcanic cinder cone in northern Arizona. The man is clearly onto something. Until the crater opens to the public, you can find us in Air Apparent, thinking about the sky.