On the other hand, local libraries can't keep books forever -- there are space issues. At some point a librarian needs to be able to justify new purchases for t

On the other hand, local libraries can't keep books forever -- there are space issues. At some point a librarian needs to be able to justify new purchases for the science section and so some books need to go. To play devil's advocate, why would you want to deny children new books with the latest pictures and news, and instead lead them to think that all space exploration was done and over two generations ago? Why would you want to refuse them pictures of comets from space and restrict them to hand-drawn imaginings of space life grounded in the dreams of the 1960s?