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

Deep below the Earth’s surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the chemicals fossilized within shine in brilliant hues of pink, blue and green.

Earth not only does not support diverse ecosystems, but it also has places that serve as analogs for other celestial worlds ...

Humans have remodeled the Earth so profoundly that in 2000, atmospheric chemist Paul Crutzen and biologist Eugene Stoermer proposed that the Holocene epoch had ended and the "Anthropocene," or human ...