The world's northernmost settlement with a permanent population of more than 1,000 is a fascinating town on the island of ...

Deep below Earth’s surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the ...

Caves in South Dakota unexpectedly glow pink and blue under black light and could serve as proxies for conditions on icy ...

Fluorescent caves deep below America show how alien life could exist on one of Jupiter's moons, say scientists.