Space station

I've never really paid attention to the International Space Station, its size, assembly, undertakings, except in the most peripheral way. Found this graphical explanation of how it came together fascinating -- like Eliot, I had no idea how big the whole thing is, let alone how many trips have gone into putting it together. Pretty spiff. (Of course, I still don't really know what they're doing up there...)

(via Follow Me Here)