Hidden underneath the hilly grasslands studded with ocotillos and mesquite trees in southeastern Arizona lies a world shrouded in perpetual darkness: Kartchner Caverns, a limestone cave system renowned for its untouched cave formations, sculpted over millennia by groundwater dissolving the bedrock and carving out underground rooms, and passages that attract tourists from all over the world.
Scottish scientists say they've taken the first steps towards creating a form of life based on inorganic elements.
Scientists, rather unbelievably, have created a functioning laser from a single living human kidney cell.
Yes, like Cyndi Lauper once said, girls just want to have fun! But do they need Glo to do it?