thanks to tidal heating, is spouting geysers of water into space. An unexpected entry in the horse race of habitability, Enceladus is the first other world for which we have convincing evidence of liquid water. And where there's liquid water ... ...
Besides being commonly found on Earth, it is abundant in the sun and stars, according to the Los Alamos National Laboratory. Iron is crucial to the survival of living organisms, according to Jefferson Lab. In plants, it plays a role in the production of chlorophyll. In animals, it is a ...