Carnival of Space #50

The Carnival of Space is quickly approaching its one year anniversary, and Carnival #50 is now available for your reading pleasure over at KySat.com. There are a number of interesting posts - I especially liked Centauri Dreams' post on "Life as a Rarity in the Cosmos" (though the problem of extrapolation from N=1 pretty much leaves all such discussions in the category of educated guesses). I would like to comment on Space Cynics' post "More Ritalin Please... Generation Y is here" but no time today.