space

here's a cool video of satellite footage of the gps traces of london taxi cabs over the course of a night. really very cool:
http://www.bbc.co.uk/britainfromabove/stories/visualisations/taxis.shtml


there's a large roar coming from the outer reaches of our universe:
http://www.space.com/scienceastronomy/090107-aas-loud-cosmic-noise.html