FLAGSTAFF, Ariz., May 4 (UPI) -- Of the hundreds of extrasolar planets discovered since 1995, not one resembles Earth, America's leading planet hunter says.
As astronomers gathered for a conference in Flagstaff, Ariz., this week, Geoff Marcy of the University of California, Berkeley, told the Arizona Daily Sun: "We haven't found any planets that have a rocky surface on which water can puddle, and water serves as a cocktail mixer for life."