When Sarah Cooper goes secondhand shopping, she brings a little blacklight with her and shines it on everything—candlesticks, vases, dishware. If it starts glowing, often a Ghostbusters hue of neon ...

While roaming my favorite antique store outside Atlanta recently, I heard a “click click” sound and turned around to see a woman shining a black-light flashlight on a green plate. A few minutes later, ...

Uranium glass, which glows under ultraviolet light, dates back to the early 19th century, Barnett says, when "European glassmakers used uranium as a colorant to achieve a distinctive yellow or green ...