This issue features people building a Dark Energy Camera, recycling helium, fostering diversity at national labs, encouraging fellow scientists to Twitter, and admiring the accidental beauty of ordinary test samples. The mayor of a small South Dakotan mining town talks about its future as the site of a major underground lab. We stick a few pins in the Periodic Table to mark the elements most essential to particle physics, examine an early sketch for Pierre Auger Observatory, and explain virtual particles in less time than it takes to brush your teeth (provided you're doing as thorough a job as your dentist advises! 'Fess up, now: Have you flossed?) Plus, as always, short pieces on topics ranging from UFO rumors to cute little eco-mobiles, as well as highlights from symmetry breaking.
You'll find the full Table of Contents here.