SpaceReview: The Pluto Files by Neil deGrasse Tyson A highly entertaining history of Pluto with an emphasis on its place in culture, especially in the US, where it has been called a "true-blue American planet" Books & Arts
SpaceMystery stone circles may point to water on Mars Circles of rocky material sorted by size suggest that the local Martian climate was once much warmer than thought 51¶¯Âþ