In this issue: "Improbable Planets": Astronomers are finding planets where there were not supposed to be any. "The Price of Silent Mutations": Small changes to DNA are proving to be big factors in human diseases, evolution and biotechnology. "The Taming of the Cat": Genetic and archaeological findings suggest wildcats became house cats much earlier - and in a much different place. "Phosphorus: A Looming Crisis": Global reserves of the once underappreciated element are rapidly depleting.
©2009 Scientific American