Ratnapura is the island's "gemstone capital", where miner Samaranayakege has been living his whole life. "There isn't any ...

So why do so many life-forms breathe oxygen? There are probably thousands of kinds of metabolisms, or chemical processes that ...

Skoltech researchers have theoretically investigated the wide range of molecules that oxygen and carbon atoms can form in ...

All told, the size of orange and red patches on the new maps is 3,626 square miles — an area nearly twice the size of ...