This is a fifteen-minute video of astronauts doing...well, something that involves an EVA a few days ago during the current Space Shuttle mission.
OK, Wikipedia lets us know more or less what's going on here:
On flight day 7, Danny Olivas and Christer Fuglesang performed the second spacewalk of the STS-128 mission. Olivas and Fuglesang installed and connected the new Ammonia Tank Assembly (ATA), and also performed two get aheads. The get ahead tasks included installing protective lens covers on the Space Station Remote Manipulator System (SSRMS) End B cameras . Once the ATA was installed, the tank was integrated into the cooling loop. While Olivas and Fugelsang were outside, the rest of the crew continued on transferring items to and from both the shuttle mid-deck and MPLM.
Right, here's the video. Most of it is silent for some reason, so you may want to put on some background music. (I happened to be listening to 'Phaedra' from Tangerine Dream at the time, which worked pretty well.) And if you want to see it in a larger format, you can do so here.
What I find so remarkable about this video is how normal it all seems. Just a bunch of people hanging out in their shirtsleeves, unpacking some bubble-wrapped equipment (rather tricky in zero-g, it seems) and using their laptops (which are running Windows XP, it seems...somehow, seeing that all-too-familiar screensaver is the most unsettling thing about this).
Meanwhile, looking over their shoulders, we see...the Earth.
(Via Boing Boing)