In this issue:
"The Neuroscience of True Grit": Why most people are able to rebound surprising well from tragedy.
"Diseases in a Dish": A creative use of stem cells may hasten drug development for debilitating diseases.
"Demons, Entropy and the Quest for Absolute Zero": A 19th-century thought experiment has turned into a real technique for reaching ultralow temperatures.
"Dinosaur Death Trap": A team of fossil hunters have unearthed a death scene in the Gobi Desert that revealed new clues as to how dinosaurs lived.
©2011 Scientific American