Artist James Turrell's latest installation, which opens Wednesday at the Claremont Graduate School, is extraordinary for several reasons.
Turrell has designed a "celestial observatory" on the campus that takes advantage of waning and waxing light, and therefore works for two hours before sunrise and two hours after sunset only.
It isn't a passively examined piece of sculpture or artwork. What you get out of it depends on your perceptions, your moods and your willingness to give in to the quiet contemplative space.
Visitors step inside, sit or lie down, get comfortable and watch the interplay of natural light and the observatory's pale halogen lighting as twilight or dawn deepens.