TURNING THE LIGHTS OFF IN TUCSON.

• Position: Brief Article

For astronomers in Tucson, Ariz., keeping the sky dark is imperative. But for business owners, finding your parked car is more important than spotting the North Star. That's why they are upset by a new ordinance intended to keep nighttime skies dark around a pair of observatories. The Pima County ordinance establishes a per-acre limit on the amount of light for areas with new construction and extensive renovations. Local businesses, including a chain of convenience...