Archaean bacteria from the Lost City and the Abyssal Hills!
About primitive microbes on the bottom of the ocean. Contains the bonus phrases "autonomous benthic explorer", "slurp gun", and "Hey, it's alive!".
Neurobiology of trust
A neat article about what goes on in your brain when you're thinking about trading, trusting, and economics. Warning: do not read if you cherish your illusions that economic theory understands the stock market.