And it's a David Bowie cover, of course.
I'm sad but glad of course to see astronaut Chris Hadfield returning to Earth. He's had a great run on aboard the ISS, and in addition to the science conducted he's produced some amazing photos and videos. That and the tweets. Checking up on a stream of tweets from orbit detailing things a spacewalk in real time never failed to add a sense of wonder to a day behind the keyboard here on the ground.