Guest “geological story telling” by David Middleton The Case for Past Life on Mars Gets StrongerBut how much evidence is needed until we can say there’s proof? By Dirk Schulze-MakuchAIRSPACEMAG.COMAPRIL 13,...
I’m fascinated by creatures that create new ways of life for others. Ecologists talk about ‘keystone species,’ ones which support entire ecosystems, like the central stone in a renaissance archway. Pull it away, and...