What I've Been Up To

I have a couple of articles that have come out recently: an interview in Scientific American with John Grotzinger, the Project Scientist of the Mars Curiosity rover mission, done the morning after it landed. There's also an associated podcast.

And a feature article in Physics World magazine, "When supergravity was born," that tells the story of a late-night computer calculation in 1976 that showed the existence of supergravity -- a field theory that merges Einstein's gravity with supersymmetry.