Spacing out

Here are some interesting space-exploration items I've been accumulating ...

Let's get it off the drawing boardsGetting the downers out of the way first: "NASA says new heavy-lift rocket debut not likely until 2018." And wouldn't it be nice if NASA knew what it wanted to do with its ever-delayed launcher? (On that latter point, it's not only me who wonders. From the Washington Post, see, "NASA has a spaceship, but where will it go?") Creeping toward a mission choice -- for 2025 -- we read "For...