This post is, as usual for lukeprog, intensely awesome and almost ludicrously well-cited. Thank you! I will be linking this to friends.

I'm somewhat uncertain about that picture at the top, though. It's very very cool, but it may not be somber enough for this subject matter; maybe an astronomy photo would be better. Or maybe the reverse is needed, and the best choice would be a somewhat silly picture of a superhero, as referenced in the opening paragraph.